ES2017, Flow, React JSX and GraphQL Grammar & Transpilation for ATOM

Language-babel

Language grammar for all versions of JavaScript including ES2016 and ESNext, JSX syntax as used by Facebook React, Atom's etch and others, as well as optional typed JavaScript using Facebook flow. This package also supports highlighting of GraphQL language constructs when inside certain JavaScript template strings. For .graphql and .gql file support please see language-graphql . The colour of syntax is determined by the theme in use.

The package also provides

automatic indentation of JSX.
JSX tag closure and JSX html element completion suggestions.
Context aware commenting out of JSX elements.
Additional newline insertion between JSX tag pairs.
Babel transpilation on file saves (optional).
Babel transpile of all files in a directory or directories.
Babel transpiled code preview.
Support for styled-components CSS inside tagged template strings including CSS auto-completion and optionally Emmet CSS completion under a package setting. Please note that emmet completion is just for snippets. Additional features such as vendor prefix and gradient support is not supported as these require a full distribution of emmet which I feel is too large for this package.
Support for GraphQL code highlighting
Support for adding other language grammars to highlight code inside template literal strings.

By default the language-babel package will detect file types .js,.babel,.jsx, .es, .es6, .mjs and .flow. Use the standard ATOM interface to enable it for other file types. This provides a grammar that scopes the file in order to colour the text in a meaningful way. If other JavaScript grammars are enabled these may take precedence over language-babel. Look at the bottom right status bar indicator to determine the language grammar of a file being edited. language-babel will be shown as either Babel or Babel ES6 JavaScript. Clicking the name will allow the grammar for a file to be changed.

language-babel provides Babel V6 & V5 transpiler support. If you only require grammar/syntax highlighting ensure that the package settings Transpile On Save and Allow Local Override are both off.

Installation

Install via ATOM or by using apm install language-babel. If you only need to use the provided grammar read no further!

Auto Completion of JSX tags, elements and attributes

JSX tag closures are provided as auto-complete options. In addition, common HTML elements and their associated properties are displayed as auto-complete lists. Those supported by language-babel are described here

autoclose

Commenting out JSX elements

JSX elements cannot be commented out by using standard // or /* */ commenting. Normally {/* */} is used instead. language-babel changes the Atom toggle comments behaviour when inside a JSX block to support this behaviour. Nested elements within JSX that require a // form of commenting will be detected automatically.

autoclose

Automatic insertion between JSX tags

When a newline is inserted between a matched open/close pair of JSX tags, language-babel inserts an additional line and positions the cursor. If Auto Indent is also turned on then the cursor is correctly indented.

autoclose

Automatic Indenting of JSX

The package setting Auto Indent JSX if enabled will auto-indent any JSX code typed or moved across using suitable Atom defaults. There are also three commands - language-babel:toggle-auto-indent-jsx, language-babel:auto-indent-jsx-on and language-babel:auto-indent-jsx-off that override the default behaviour. These can be mapped to keyboard shortcuts if needed.

Auto-Indenting will also attempt to read the .eslintrc file associated with an edited file's project for the presence of four properties whose defaults are shown below. These rules, which are part of the ESLint-plugin-React EsLint plugin, are then used to determine the alignment and tab/spaces spacing of JSX elements. For more information on the options for these rules see Closing bracket, Indent and Indent Props.

Please note that no attempt is currently made to read eslint settings in any other file. e.g. package.json, eslint.js, extends..., etc.

{
  "rules": {
    "indent": 1,
    "react/jsx-closing-bracket-location": 1,
    "react/jsx-indent-props": 1,
    "react/jsx-indent": 1
  }
}

When moving around a JSX block language-babel reformats the preceding JSX lines automatically. Lines following the cursor are not indented. This is to protect the source code following incomplete JSX from being processed. The user should correctly position the first JSX element as auto-indenting will not do this.

You may also turn off automatic indenting for all files by setting the package option Auto Indent JSX

indent

Interface to Babel v7, v6 & v5.

language-babel fully supports the Babel JavaScript transpiler versions 5, 6 and 7.

Options in the language-babel package settings and/or in .languagebabel project based JSON files allow for Babel validations to be carried out on a file saves using .babelrc options. A file tree context menu - Language-Babel - is also provided that allows whole directories to be transpiled obeying any .babelrc and .languagebabel settings. Even if using a workflow such as gulp, webpack, etc, this can be very useful. Additional options allow the output from Babel (transpiled code and maps ) to be output to other directories.

It is also possible to preview any source file as Babel would output it.

Previewing

Babel code can be previewed as shown below. Source mapping keeps the ES201x file's cursor in step with the transpiled code's cursor. This feature requires the Atom package source-preview in which language-babelbecomes a provider of transpiled output which source-preview consumes.

Please note that the following two packages should be disabled or uninstalled to stop multiple packages contending for the same transpile - source-preview-babel and source-preview-react.

source-preview provides a keyboard toggle to view the current file. As with transpiling described below, a project must have the relevant .babelrc, package.json and node_modules

example

Transpiling

This package works by using the concept of a project folder which we assume contains a project or even nested projects any of which may contain a Babel project. In a Babel project, we expect to see one or more .babelrc files, node_modules folders at the root's of the project containing an optional @babel/core babel-core and other babel plugins/presets as determined by the project's package.json file. In addition, we may expect to see one or more .languagebabel files in the project. Projects are either implicit (an Atom project folder) or explicit (denoted by a .languagebabel property of "projectRoot": true). If no @babel/core or babel-core is found in the project then a check is made to determine if this is part of a Yarn workspace and if so a further check is made in the workspace node_modules for @babel/core or babel-core. If none are found then a version will be provided by language-babel but this will be a Babel Version 6 instance. Plugins and presets will not be provided by the package.

A trivial example project that shows examples of using .languagebabel and .babelrc files may be found here.

example

Multiple projects may be open at any time inside Atom and language-babel must allow the use of differing babel-core versions and associated plugins when transpiling. It does this by using background tasks - one per Babel project. When a language-babel grammar enabled file is saved the package settings and optionally any .languagebabel configuration files are read to determine if the file should be transpiled and what to do with the output. These settings and .languagebabel options are described below.

It is very easy to ensure that language-babel does not transpile files that are not needed. Just turn off the global package setting Transpile On Save and turn on Allow Local Override. Apart from grammar highlighting only projects having a .languagebabel in the file path will then be affected by this package. Further granularity is easy too.

If .babelrc and/or package.json files contain Babel properties that are environment specific these environments should be created before Atom is started. In particular, Babel assumes a development environment by default, whereas Atom assumes a production environment by default.

e.g.

Windows

set NODE_ENV="development"
atom

OSX/Unix

NODE_ENV="development"
atom

Package Settings

For most projects, it is better to configure language-babel via project-based .languagebabel file properties which will override the package settings below. See ".langeuagebabel Configuration" for more information on this behaviour.

Allow Local Override

If set this allows .languagebabel file properties to override the global package settings.

Transpile On Save

On any file save of a language-babel grammar enabled file the Babel transpiler is called. No actual transpiled file is saved but any Babel errors and/or successful indicators are notified by an ATOM pop-up. Not all files are candidates for transpilation as other settings can affect this. For example see Disable When No Babelrc File In Path and Babel Source Path below.

{"transpileOnSave": true} or
{"transpileOnSave": false}

Create Transpiled Code

If enabled together with Transpile On Save this will output JavaScript code to a .js file with the same prefix as the original. By using the Babel Transpile Path options it is possible to transpile to a different target directory. Not all files are candidates for transpilation as other settings can affect this.

{"createTranspiledCode": true} or
{"createTranspiledCode": false}

Disable When No Babelrc File In Path

Disables transpiler if no .babelrc files are found in the source file path.

{"disableWhenNoBabelrcFileInPath": true} or
{"disableWhenNoBabelrcFileInPath": false}

Suppress Transpile On Save Messages

Suppress all successful save messages. Errors are still notified.

{"suppressTranspileOnSaveMessages": true} or
{"suppressTranspileOnSaveMessages": false}

Suppress Source Path Messages

This is set by default so that when a file is saved that is outside the Babel Source Path directory no message is generated. This is particularly useful when you have mixed ES2015 and ES3-5 environment. ES2015 files can be placed inside a Babel Source Path where they will be transpiled and other files will not pop up annoying messages when being saved.

{"suppressSourcePathMessages": true} or
{"suppressSourcePathMessages": false}

Create Map

If transpiled output is being saved a separate source map can be also be saved. The source file name will be used with a new suffix of .js.map and sent to a directory specified in Babel Maps Path.

If .babelrc files use the sourceMaps: inline or sourceMaps both option, turn this createMap option off as the map data is stored as part of the source file.

{"createMap": true} or
{"createMap": false}

Babel Maps Add Url

If a source map is created using the Create Map option above then this appends a Url reference //# sourceURL=sourcefile.js.map to the transpiled JavaScript file.

{"babelMapsAddUrl": true} or
{"babelMapsAddUrl": false}

Project Root ( only present in `.languagebabel` files)

A .languagebabel property that defines this directory is a project root. A project root would contain a node_modules folder with an optional babel-core as well as any plugins required.

{"projectRoot": true} or
{"projectRoot": false}

Babel Source Path, Babel Transpile Path and Babel Maps Path

These a directories based on the project root. A project root is either implicit ( based on an Atom folders root directory) or explicit ( based upon the root defined in the nearest .languagebabel file with a property "projectRoot": true )

Only files found under the project/babelsourcepath will be candidates for transpilation. If multiple project root folders exist then babelsourcepath may exist in any or all folders.

The Transpile and Maps paths allow different target directories to be specified. If multiple project root folders exist then they may exist in any or all folders.

e.g. Two project root folders exist /proj1 and /proj2. If Source Path is set to babelSourcethe Transpile Path is set to babelTranspile and the Maps Path is set to babelMaps then:-

/proj1/babelSource/foo.es6 ->/proj1/babelTranspile/foo.js,/proj1/babelMaps/foo.js.map

{
  "projectRoot":  true,    
  "babelSourcePath": "babelSource",
  "babelTranspilePath": "babelTranspile",
  "babelMapsPath": "babelMaps"
}

/proj2/babelSource/dirBar/foo.es6 -> /proj2/lib/foo.js,/proj2/lib/foo.js.map

{
  "projectRoot":  true,
  "babelSourcePath": "babelSource/dirBar",
  "babelTranspilePath": "lib",
  "babelMapsPath": "lib"
}

Create Target Directories

When enabled any target directories that do not exist will be created prior to a transpilation.

{"createTargetDirectories": true} or
{"createTargetDirectories": false}

Keep File Extension

Keeps the source filename extension as the target filename extension

Auto Indent JSX

Enables automatic indenting of JSX.

JavaScript Tagged Template Literal Grammar Extensions

This package setting allows language-babel to include third party grammars to highlight code inside template literal strings. These may be tagged template literals, described here, or where no appropriate function tag exists, another form of tag marking that signifies the templates nature. e.g. A comment string.

For example you may wish to highlight templates prefixed with /* @html */`<div></div>` as HTML, and maybe sql`select * from table foo` as SQL. The latter assumes a tagged function named sql exists in the code.

In order to do this, you need to find a language package that supports the highlighting of the template code. This language package should then be installed into Atom. You then need to find the scope name for that grammar. This can be done in a number of ways, but if you view the grammars JSON/CSON file and look for the scopeName property field, this indicates the scope name for that grammar.

If we use the Atom provided languages language-css, language-html and language-sql in our example above to highlight the template code, then this field would look like.

"(?:css\.(?:[a-z])+)":source.css, /* @html */:text.html.basic, sql:source.sql

In other words, the package settings for this field is an array of strings, with each string in the form of template-prefix:grammar-scopename#optional-include.

where:

template-prefix is a literal string or an Oniguruma regular expression ( Oniguruma is the regular expression engine for TextMate grammars used by Atom) that comes before the opening back-tick of a template. A literal string may contain any characters except a comma but including colons. A regular expression is denoted by being enclosed by double quote marks "RegExp Here". Most importantly, a regular expression should create no capturing groups.
:The last colon in the string signifies the start of the embedded grammars scopeName.
grammar-scopename is the scopeName of the grammar used to highlight the template.
#optional-include if present, will use that include block in the grammars repository.

Styled-Components Auto-Complete Method

This flag if set will enable Emmet snippets to be used inside CSS templates. If a valid emmet abbreviation is entered then the expanded snippet will appear at the top of a auto-complete list. Pressing the appropriate auto-complete key (normally tab) will expand the snippet.

.languagebabel Configuration

.languagebabel JSON configuration files can exist in any directory of the path that contains a source file to be compiled. The properties in this file override the global package settings above. If .languagebabel files are present, they read and merged starting in the source files directory up to the project root directory. Properties defined closest the source file take precedence.

To use this option please enable the Allow Local Override package setting.

A .languagebabel file may contain one or more of the following properties.

{
  "babelMapsPath":                    "relPath",
  "babelMapsAddUrl":                  true|false,
  "babelSourcePath":                  "relPath",
  "babelTranspilePath":               "relPath",
  "createMap":                        true|false,
  "createTargetDirectories":          true|false,
  "createTranspiledCode":             true|false,
  "disableWhenNoBabelrcFileInPath":   true|false,
  "keepFileExtension":                true|false,
  "projectRoot":                      true|false,  
  "suppressSourcePathMessages":       true|false,
  "suppressTranspileOnSaveMessages":  true|false,
  "transpileOnSave":                  true|false
}

GraphQL Code Highlighting

language-babel supports highlighting of GraphQL code within JavaScript files. For highlighting .graphql and .gql files see its sister grammar - language-graphql.

Inside JavaScript, GraphQL enclosed in back-ticks, a.k.a. Quasi or template strings are highlighted. Other GraphQL structures, notably types, are supported by the Flow component of this package.

Strings that have one of three prefixes/tags are parsed by the grammar to highlight the code enclosed.

Relay.QL`This is how Relay uses template strings`

graphql`This is how Relay will use template strings`

gql`This is how Apollo for GraphQL uses template strings`

/* GraphQL */`For cases where no template tag function is available`

An example of using the third method for highlighting code using /* GraphQL */

var { graphql, buildSchema } = require('graphql');

var schema = buildSchema(/* GraphQL */`
  type Query {
    hello: String
  }
`);

Download Details:

Author: Gandm
Source Code: https://github.com/gandm/language-babel
License: MIT license

#atom #react #graphql #babel

What is GEEK

Buddha Community

ES2017, Flow, React JSX and GraphQL Grammar & Transpilation for ATOM

Autumn Blick

1598839687

How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

Performance: It delivers optimal performance.
Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
UI design: React Native enables you to design simple and responsive UI for your mobile app.
3rd party plugins: This framework supports 3rd party plugins.
Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
Near-native user experience: React Native provides several native components, and these are platform agnostic.
The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native

Hunter Krajcik

1672502880

ES2017, Flow, React JSX and GraphQL Grammar & Transpilation for ATOM

Language-babel

Language grammar for all versions of JavaScript including ES2016 and ESNext, JSX syntax as used by Facebook React, Atom's etch and others, as well as optional typed JavaScript using Facebook flow. This package also supports highlighting of GraphQL language constructs when inside certain JavaScript template strings. For .graphql and .gql file support please see language-graphql . The colour of syntax is determined by the theme in use.

The package also provides

automatic indentation of JSX.
JSX tag closure and JSX html element completion suggestions.
Context aware commenting out of JSX elements.
Additional newline insertion between JSX tag pairs.
Babel transpilation on file saves (optional).
Babel transpile of all files in a directory or directories.
Babel transpiled code preview.
Support for styled-components CSS inside tagged template strings including CSS auto-completion and optionally Emmet CSS completion under a package setting. Please note that emmet completion is just for snippets. Additional features such as vendor prefix and gradient support is not supported as these require a full distribution of emmet which I feel is too large for this package.
Support for GraphQL code highlighting
Support for adding other language grammars to highlight code inside template literal strings.

By default the language-babel package will detect file types .js,.babel,.jsx, .es, .es6, .mjs and .flow. Use the standard ATOM interface to enable it for other file types. This provides a grammar that scopes the file in order to colour the text in a meaningful way. If other JavaScript grammars are enabled these may take precedence over language-babel. Look at the bottom right status bar indicator to determine the language grammar of a file being edited. language-babel will be shown as either Babel or Babel ES6 JavaScript. Clicking the name will allow the grammar for a file to be changed.

language-babel provides Babel V6 & V5 transpiler support. If you only require grammar/syntax highlighting ensure that the package settings Transpile On Save and Allow Local Override are both off.

Installation

Install via ATOM or by using apm install language-babel. If you only need to use the provided grammar read no further!

Auto Completion of JSX tags, elements and attributes

JSX tag closures are provided as auto-complete options. In addition, common HTML elements and their associated properties are displayed as auto-complete lists. Those supported by language-babel are described here

autoclose

Commenting out JSX elements

JSX elements cannot be commented out by using standard // or /* */ commenting. Normally {/* */} is used instead. language-babel changes the Atom toggle comments behaviour when inside a JSX block to support this behaviour. Nested elements within JSX that require a // form of commenting will be detected automatically.

autoclose

Automatic insertion between JSX tags

When a newline is inserted between a matched open/close pair of JSX tags, language-babel inserts an additional line and positions the cursor. If Auto Indent is also turned on then the cursor is correctly indented.

autoclose

Automatic Indenting of JSX

The package setting Auto Indent JSX if enabled will auto-indent any JSX code typed or moved across using suitable Atom defaults. There are also three commands - language-babel:toggle-auto-indent-jsx, language-babel:auto-indent-jsx-on and language-babel:auto-indent-jsx-off that override the default behaviour. These can be mapped to keyboard shortcuts if needed.

Auto-Indenting will also attempt to read the .eslintrc file associated with an edited file's project for the presence of four properties whose defaults are shown below. These rules, which are part of the ESLint-plugin-React EsLint plugin, are then used to determine the alignment and tab/spaces spacing of JSX elements. For more information on the options for these rules see Closing bracket, Indent and Indent Props.

Please note that no attempt is currently made to read eslint settings in any other file. e.g. package.json, eslint.js, extends..., etc.

{
  "rules": {
    "indent": 1,
    "react/jsx-closing-bracket-location": 1,
    "react/jsx-indent-props": 1,
    "react/jsx-indent": 1
  }
}

When moving around a JSX block language-babel reformats the preceding JSX lines automatically. Lines following the cursor are not indented. This is to protect the source code following incomplete JSX from being processed. The user should correctly position the first JSX element as auto-indenting will not do this.

You may also turn off automatic indenting for all files by setting the package option Auto Indent JSX

indent

Interface to Babel v7, v6 & v5.

language-babel fully supports the Babel JavaScript transpiler versions 5, 6 and 7.

Options in the language-babel package settings and/or in .languagebabel project based JSON files allow for Babel validations to be carried out on a file saves using .babelrc options. A file tree context menu - Language-Babel - is also provided that allows whole directories to be transpiled obeying any .babelrc and .languagebabel settings. Even if using a workflow such as gulp, webpack, etc, this can be very useful. Additional options allow the output from Babel (transpiled code and maps ) to be output to other directories.

It is also possible to preview any source file as Babel would output it.

Previewing

Babel code can be previewed as shown below. Source mapping keeps the ES201x file's cursor in step with the transpiled code's cursor. This feature requires the Atom package source-preview in which language-babelbecomes a provider of transpiled output which source-preview consumes.

Please note that the following two packages should be disabled or uninstalled to stop multiple packages contending for the same transpile - source-preview-babel and source-preview-react.

source-preview provides a keyboard toggle to view the current file. As with transpiling described below, a project must have the relevant .babelrc, package.json and node_modules

example

Transpiling

This package works by using the concept of a project folder which we assume contains a project or even nested projects any of which may contain a Babel project. In a Babel project, we expect to see one or more .babelrc files, node_modules folders at the root's of the project containing an optional @babel/core babel-core and other babel plugins/presets as determined by the project's package.json file. In addition, we may expect to see one or more .languagebabel files in the project. Projects are either implicit (an Atom project folder) or explicit (denoted by a .languagebabel property of "projectRoot": true). If no @babel/core or babel-core is found in the project then a check is made to determine if this is part of a Yarn workspace and if so a further check is made in the workspace node_modules for @babel/core or babel-core. If none are found then a version will be provided by language-babel but this will be a Babel Version 6 instance. Plugins and presets will not be provided by the package.

A trivial example project that shows examples of using .languagebabel and .babelrc files may be found here.

example

Multiple projects may be open at any time inside Atom and language-babel must allow the use of differing babel-core versions and associated plugins when transpiling. It does this by using background tasks - one per Babel project. When a language-babel grammar enabled file is saved the package settings and optionally any .languagebabel configuration files are read to determine if the file should be transpiled and what to do with the output. These settings and .languagebabel options are described below.

It is very easy to ensure that language-babel does not transpile files that are not needed. Just turn off the global package setting Transpile On Save and turn on Allow Local Override. Apart from grammar highlighting only projects having a .languagebabel in the file path will then be affected by this package. Further granularity is easy too.

If .babelrc and/or package.json files contain Babel properties that are environment specific these environments should be created before Atom is started. In particular, Babel assumes a development environment by default, whereas Atom assumes a production environment by default.

e.g.

Windows

set NODE_ENV="development"
atom

OSX/Unix

NODE_ENV="development"
atom

Package Settings

For most projects, it is better to configure language-babel via project-based .languagebabel file properties which will override the package settings below. See ".langeuagebabel Configuration" for more information on this behaviour.

Allow Local Override

If set this allows .languagebabel file properties to override the global package settings.

Transpile On Save

On any file save of a language-babel grammar enabled file the Babel transpiler is called. No actual transpiled file is saved but any Babel errors and/or successful indicators are notified by an ATOM pop-up. Not all files are candidates for transpilation as other settings can affect this. For example see Disable When No Babelrc File In Path and Babel Source Path below.

{"transpileOnSave": true} or
{"transpileOnSave": false}

Create Transpiled Code

If enabled together with Transpile On Save this will output JavaScript code to a .js file with the same prefix as the original. By using the Babel Transpile Path options it is possible to transpile to a different target directory. Not all files are candidates for transpilation as other settings can affect this.

{"createTranspiledCode": true} or
{"createTranspiledCode": false}

Disable When No Babelrc File In Path

Disables transpiler if no .babelrc files are found in the source file path.

{"disableWhenNoBabelrcFileInPath": true} or
{"disableWhenNoBabelrcFileInPath": false}

Suppress Transpile On Save Messages

Suppress all successful save messages. Errors are still notified.

{"suppressTranspileOnSaveMessages": true} or
{"suppressTranspileOnSaveMessages": false}

Suppress Source Path Messages

This is set by default so that when a file is saved that is outside the Babel Source Path directory no message is generated. This is particularly useful when you have mixed ES2015 and ES3-5 environment. ES2015 files can be placed inside a Babel Source Path where they will be transpiled and other files will not pop up annoying messages when being saved.

{"suppressSourcePathMessages": true} or
{"suppressSourcePathMessages": false}

Create Map

If transpiled output is being saved a separate source map can be also be saved. The source file name will be used with a new suffix of .js.map and sent to a directory specified in Babel Maps Path.

If .babelrc files use the sourceMaps: inline or sourceMaps both option, turn this createMap option off as the map data is stored as part of the source file.

{"createMap": true} or
{"createMap": false}

Babel Maps Add Url

If a source map is created using the Create Map option above then this appends a Url reference //# sourceURL=sourcefile.js.map to the transpiled JavaScript file.

{"babelMapsAddUrl": true} or
{"babelMapsAddUrl": false}

Project Root ( only present in `.languagebabel` files)

A .languagebabel property that defines this directory is a project root. A project root would contain a node_modules folder with an optional babel-core as well as any plugins required.

{"projectRoot": true} or
{"projectRoot": false}

Babel Source Path, Babel Transpile Path and Babel Maps Path

These a directories based on the project root. A project root is either implicit ( based on an Atom folders root directory) or explicit ( based upon the root defined in the nearest .languagebabel file with a property "projectRoot": true )

Only files found under the project/babelsourcepath will be candidates for transpilation. If multiple project root folders exist then babelsourcepath may exist in any or all folders.

The Transpile and Maps paths allow different target directories to be specified. If multiple project root folders exist then they may exist in any or all folders.

e.g. Two project root folders exist /proj1 and /proj2. If Source Path is set to babelSourcethe Transpile Path is set to babelTranspile and the Maps Path is set to babelMaps then:-

/proj1/babelSource/foo.es6 ->/proj1/babelTranspile/foo.js,/proj1/babelMaps/foo.js.map

{
  "projectRoot":  true,    
  "babelSourcePath": "babelSource",
  "babelTranspilePath": "babelTranspile",
  "babelMapsPath": "babelMaps"
}

/proj2/babelSource/dirBar/foo.es6 -> /proj2/lib/foo.js,/proj2/lib/foo.js.map

{
  "projectRoot":  true,
  "babelSourcePath": "babelSource/dirBar",
  "babelTranspilePath": "lib",
  "babelMapsPath": "lib"
}

Create Target Directories

When enabled any target directories that do not exist will be created prior to a transpilation.

{"createTargetDirectories": true} or
{"createTargetDirectories": false}

Keep File Extension

Keeps the source filename extension as the target filename extension

Auto Indent JSX

Enables automatic indenting of JSX.

JavaScript Tagged Template Literal Grammar Extensions

This package setting allows language-babel to include third party grammars to highlight code inside template literal strings. These may be tagged template literals, described here, or where no appropriate function tag exists, another form of tag marking that signifies the templates nature. e.g. A comment string.

For example you may wish to highlight templates prefixed with /* @html */`<div></div>` as HTML, and maybe sql`select * from table foo` as SQL. The latter assumes a tagged function named sql exists in the code.

In order to do this, you need to find a language package that supports the highlighting of the template code. This language package should then be installed into Atom. You then need to find the scope name for that grammar. This can be done in a number of ways, but if you view the grammars JSON/CSON file and look for the scopeName property field, this indicates the scope name for that grammar.

If we use the Atom provided languages language-css, language-html and language-sql in our example above to highlight the template code, then this field would look like.

"(?:css\.(?:[a-z])+)":source.css, /* @html */:text.html.basic, sql:source.sql

In other words, the package settings for this field is an array of strings, with each string in the form of template-prefix:grammar-scopename#optional-include.

where:

template-prefix is a literal string or an Oniguruma regular expression ( Oniguruma is the regular expression engine for TextMate grammars used by Atom) that comes before the opening back-tick of a template. A literal string may contain any characters except a comma but including colons. A regular expression is denoted by being enclosed by double quote marks "RegExp Here". Most importantly, a regular expression should create no capturing groups.
:The last colon in the string signifies the start of the embedded grammars scopeName.
grammar-scopename is the scopeName of the grammar used to highlight the template.
#optional-include if present, will use that include block in the grammars repository.

Styled-Components Auto-Complete Method

This flag if set will enable Emmet snippets to be used inside CSS templates. If a valid emmet abbreviation is entered then the expanded snippet will appear at the top of a auto-complete list. Pressing the appropriate auto-complete key (normally tab) will expand the snippet.

.languagebabel Configuration

.languagebabel JSON configuration files can exist in any directory of the path that contains a source file to be compiled. The properties in this file override the global package settings above. If .languagebabel files are present, they read and merged starting in the source files directory up to the project root directory. Properties defined closest the source file take precedence.

To use this option please enable the Allow Local Override package setting.

A .languagebabel file may contain one or more of the following properties.

{
  "babelMapsPath":                    "relPath",
  "babelMapsAddUrl":                  true|false,
  "babelSourcePath":                  "relPath",
  "babelTranspilePath":               "relPath",
  "createMap":                        true|false,
  "createTargetDirectories":          true|false,
  "createTranspiledCode":             true|false,
  "disableWhenNoBabelrcFileInPath":   true|false,
  "keepFileExtension":                true|false,
  "projectRoot":                      true|false,  
  "suppressSourcePathMessages":       true|false,
  "suppressTranspileOnSaveMessages":  true|false,
  "transpileOnSave":                  true|false
}

GraphQL Code Highlighting

language-babel supports highlighting of GraphQL code within JavaScript files. For highlighting .graphql and .gql files see its sister grammar - language-graphql.

Inside JavaScript, GraphQL enclosed in back-ticks, a.k.a. Quasi or template strings are highlighted. Other GraphQL structures, notably types, are supported by the Flow component of this package.

Strings that have one of three prefixes/tags are parsed by the grammar to highlight the code enclosed.

Relay.QL`This is how Relay uses template strings`

graphql`This is how Relay will use template strings`

gql`This is how Apollo for GraphQL uses template strings`

/* GraphQL */`For cases where no template tag function is available`

An example of using the third method for highlighting code using /* GraphQL */

var { graphql, buildSchema } = require('graphql');

var schema = buildSchema(/* GraphQL */`
  type Query {
    hello: String
  }
`);

Download Details:

Author: Gandm
Source Code: https://github.com/gandm/language-babel
License: MIT license

#atom #react #graphql #babel

Franz Becker

1651604400

React Starter Kit: Build Web Apps with React, Relay and GraphQL.

React Starter Kit — "isomorphic" web app boilerplate

React Starter Kit is an opinionated boilerplate for web development built on top of Node.js, Express, GraphQL and React, containing modern web development tools such as Webpack, Babel and Browsersync. Helping you to stay productive following the best practices. A solid starting point for both professionals and newcomers to the industry.

See getting started guide, demo, docs, roadmap | Join #react-starter-kit chat room on Gitter | Visit our sponsors:

Hiring

Getting Started

Follow the getting started guide to download and run the project (Node.js >= 8.16.2)
Check the code recipes used in this boilerplate, or share yours

Customization

The master branch of React Starter Kit doesn't include a Flux implementation or any other advanced integrations. Nevertheless, we have some integrations available to you in feature branches that you can use either as a reference or merge into your project:

feature/redux (PR) — isomorphic Redux by Pavel Lang (see how to integrate Redux) (based on master)
feature/apollo (PR) — isomorphic Apollo Client by Pavel Lang (see Tracking PR #1147) (based on feature/redux)
feature/react-intl (PR) — isomorphic Redux and React Intl by Pavel Lang (see how to integrate React Intl) (based on feature/apollo)
feature/apollo-pure (PR) — Apollo devtools and TypeScript integration by piglovesyou (based on master)

You can see status of most reasonable merge combination as PRs labeled as TRACKING

If you think that any of these features should be on master, or vice versa, some features should removed from the master branch, please let us know. We love your feedback!

Comparison

	React Starter Kit	React Static Boilerplate	ASP.NET Core Starter Kit
App type	Isomorphic (universal)	Single-page application	Single-page application
Frontend
Language	JavaScript (ES2015+, JSX)	JavaScript (ES2015+, JSX)	JavaScript (ES2015+, JSX)
Libraries	React, History, Universal Router	React, History, Redux	React, History, Redux
Routes	Imperative (functional)	Declarative	Declarative, cross-stack
Backend
Language	JavaScript (ES2015+, JSX)	n/a	C#, F#
Libraries	Node.js, Express, Sequelize, GraphQL	n/a	ASP.NET Core, EF Core, ASP.NET Identity
SSR	Yes	n/a	n/a
Data API	GraphQL	n/a	Web API

Backers

♥ React Starter Kit? Help us keep it alive by donating funds to cover project expenses via OpenCollective or Bountysource!

lehneres Tarkan Anlar Morten Olsen Adam David Ernst Zane Hitchcox

How to Contribute

Anyone and everyone is welcome to contribute to this project. The best way to start is by checking our open issues, submit a new issue or feature request, participate in discussions, upvote or downvote the issues you like or dislike, send pull requests.

Learn More

Related Projects

GraphQL Starter Kit — Boilerplate for building data APIs with Node.js, JavaScript (via Babel) and GraphQL
Membership Database — SQL schema boilerplate for user accounts, profiles, roles, and auth claims
Babel Starter Kit — Boilerplate for authoring JavaScript/React.js libraries

Support

#react-starter-kit on Stack Overflow — Questions and answers
#react-starter-kit on Gitter — Watch announcements, share ideas and feedback
GitHub issues, or Scrum board — File issues, send feature requests
appear.in/react — Open hours! Exchange ideas and experiences (React, GraphQL, startups and pet projects)
@koistya on Codementor, or Skype — Private consulting

License

Author: kriasoft
Source Code: https://github.com/kriasoft/react-starter-kit
License: MIT License

#graphql #react

Gordon Taylor

1649672700

Language-babel: ES2017, Flow, React JSX & GraphQL Grammar

language-babel

Language grammar for all versions of JavaScript including ES2016 and ESNext, JSX syntax as used by Facebook React, Atom's etch and others, as well as optional typed JavaScript using Facebook flow. This package also supports highlighting of GraphQL language constructs when inside certain JavaScript template strings. For .graphql and .gql file support please see language-graphql . The colour of syntax is determined by the theme in use.

The package also provides

automatic indentation of JSX.
JSX tag closure and JSX html element completion suggestions.
Context aware commenting out of JSX elements.
Additional newline insertion between JSX tag pairs.
Babel transpilation on file saves (optional).
Babel transpile of all files in a directory or directories.
Babel transpiled code preview.
Support for styled-components CSS inside tagged template strings including CSS auto-completion and optionally Emmet CSS completion under a package setting. Please note that emmet completion is just for snippets. Additional features such as vendor prefix and gradient support is not supported as these require a full distribution of emmet which I feel is too large for this package.
Support for GraphQL code highlighting
Support for adding other language grammars to highlight code inside template literal strings.

By default the language-babel package will detect file types .js,.babel,.jsx, .es, .es6, .mjs and .flow. Use the standard ATOM interface to enable it for other file types. This provides a grammar that scopes the file in order to colour the text in a meaningful way. If other JavaScript grammars are enabled these may take precedence over language-babel. Look at the bottom right status bar indicator to determine the language grammar of a file being edited. language-babel will be shown as either Babel or Babel ES6 JavaScript. Clicking the name will allow the grammar for a file to be changed.

language-babel provides Babel V6 & V5 transpiler support. If you only require grammar/syntax highlighting ensure that the package settings Transpile On Save and Allow Local Override are both off.

Installation

Install via ATOM or by using apm install language-babel. If you only need to use the provided grammar read no further!

Auto Completion of JSX tags, elements and attributes

JSX tag closures are provided as auto-complete options. In addition, common HTML elements and their associated properties are displayed as auto-complete lists. Those supported by language-babel are described here

autoclose

Commenting out JSX elements

JSX elements cannot be commented out by using standard // or /* */ commenting. Normally {/* */} is used instead. language-babel changes the Atom toggle comments behaviour when inside a JSX block to support this behaviour. Nested elements within JSX that require a // form of commenting will be detected automatically.

autoclose

Automatic insertion between JSX tags

When a newline is inserted between a matched open/close pair of JSX tags, language-babel inserts an additional line and positions the cursor. If Auto Indent is also turned on then the cursor is correctly indented.

autoclose

Automatic Indenting of JSX

The package setting Auto Indent JSX if enabled will auto-indent any JSX code typed or moved across using suitable Atom defaults. There are also three commands - language-babel:toggle-auto-indent-jsx, language-babel:auto-indent-jsx-on and language-babel:auto-indent-jsx-off that override the default behaviour. These can be mapped to keyboard shortcuts if needed.

Auto-Indenting will also attempt to read the .eslintrc file associated with an edited file's project for the presence of four properties whose defaults are shown below. These rules, which are part of the ESLint-plugin-React EsLint plugin, are then used to determine the alignment and tab/spaces spacing of JSX elements. For more information on the options for these rules see Closing bracket, Indent and Indent Props.

Please note that no attempt is currently made to read eslint settings in any other file. e.g. package.json, eslint.js, extends..., etc.

{
  "rules": {
    "indent": 1,
    "react/jsx-closing-bracket-location": 1,
    "react/jsx-indent-props": 1,
    "react/jsx-indent": 1
  }
}

When moving around a JSX block language-babel reformats the preceding JSX lines automatically. Lines following the cursor are not indented. This is to protect the source code following incomplete JSX from being processed. The user should correctly position the first JSX element as auto-indenting will not do this.

You may also turn off automatic indenting for all files by setting the package option Auto Indent JSX

indent

Interface to Babel v7, v6 & v5.

language-babel fully supports the Babel JavaScript transpiler versions 5, 6 and 7.

Options in the language-babel package settings and/or in .languagebabel project based JSON files allow for Babel validations to be carried out on a file saves using .babelrc options. A file tree context menu - Language-Babel - is also provided that allows whole directories to be transpiled obeying any .babelrc and .languagebabel settings. Even if using a workflow such as gulp, webpack, etc, this can be very useful. Additional options allow the output from Babel (transpiled code and maps ) to be output to other directories.

It is also possible to preview any source file as Babel would output it.

Previewing

Babel code can be previewed as shown below. Source mapping keeps the ES201x file's cursor in step with the transpiled code's cursor. This feature requires the Atom package source-preview in which language-babelbecomes a provider of transpiled output which source-preview consumes.

Please note that the following two packages should be disabled or uninstalled to stop multiple packages contending for the same transpile - source-preview-babel and source-preview-react.

source-preview provides a keyboard toggle to view the current file. As with transpiling described below, a project must have the relevant .babelrc, package.json and node_modules

example

Transpiling

This package works by using the concept of a project folder which we assume contains a project or even nested projects any of which may contain a Babel project. In a Babel project, we expect to see one or more .babelrc files, node_modules folders at the root's of the project containing an optional @babel/core babel-core and other babel plugins/presets as determined by the project's package.json file. In addition, we may expect to see one or more .languagebabel files in the project. Projects are either implicit (an Atom project folder) or explicit (denoted by a .languagebabel property of "projectRoot": true). If no @babel/core or babel-core is found in the project then a check is made to determine if this is part of a Yarn workspace and if so a further check is made in the workspace node_modules for @babel/core or babel-core. If none are found then a version will be provided by language-babel but this will be a Babel Version 6 instance. Plugins and presets will not be provided by the package.

A trivial example project that shows examples of using .languagebabel and .babelrc files may be found here.

example

Multiple projects may be open at any time inside Atom and language-babel must allow the use of differing babel-core versions and associated plugins when transpiling. It does this by using background tasks - one per Babel project. When a language-babel grammar enabled file is saved the package settings and optionally any .languagebabel configuration files are read to determine if the file should be transpiled and what to do with the output. These settings and .languagebabel options are described below.

It is very easy to ensure that language-babel does not transpile files that are not needed. Just turn off the global package setting Transpile On Save and turn on Allow Local Override. Apart from grammar highlighting only projects having a .languagebabel in the file path will then be affected by this package. Further granularity is easy too.

If .babelrc and/or package.json files contain Babel properties that are environment specific these environments should be created before Atom is started. In particular, Babel assumes a development environment by default, whereas Atom assumes a production environment by default.

e.g.

Windows

set NODE_ENV="development"
atom

OSX/Unix

NODE_ENV="development"
atom

Package Settings

For most projects, it is better to configure language-babel via project-based .languagebabel file properties which will override the package settings below. See ".langeuagebabel Configuration" for more information on this behaviour.

Allow Local Override

If set this allows .languagebabel file properties to override the global package settings.

Transpile On Save

On any file save of a language-babel grammar enabled file the Babel transpiler is called. No actual transpiled file is saved but any Babel errors and/or successful indicators are notified by an ATOM pop-up. Not all files are candidates for transpilation as other settings can affect this. For example see Disable When No Babelrc File In Path and Babel Source Path below.

{"transpileOnSave": true} or
{"transpileOnSave": false}

Create Transpiled Code

If enabled together with Transpile On Save this will output JavaScript code to a .js file with the same prefix as the original. By using the Babel Transpile Path options it is possible to transpile to a different target directory. Not all files are candidates for transpilation as other settings can affect this.

{"createTranspiledCode": true} or
{"createTranspiledCode": false}

Disable When No Babelrc File In Path

Disables transpiler if no .babelrc files are found in the source file path.

{"disableWhenNoBabelrcFileInPath": true} or
{"disableWhenNoBabelrcFileInPath": false}

Suppress Transpile On Save Messages

Suppress all successful save messages. Errors are still notified.

{"suppressTranspileOnSaveMessages": true} or
{"suppressTranspileOnSaveMessages": false}

Suppress Source Path Messages

This is set by default so that when a file is saved that is outside the Babel Source Path directory no message is generated. This is particularly useful when you have mixed ES2015 and ES3-5 environment. ES2015 files can be placed inside a Babel Source Path where they will be transpiled and other files will not pop up annoying messages when being saved.

{"suppressSourcePathMessages": true} or
{"suppressSourcePathMessages": false}

Create Map

If transpiled output is being saved a separate source map can be also be saved. The source file name will be used with a new suffix of .js.map and sent to a directory specified in Babel Maps Path.

If .babelrc files use the sourceMaps: inline or sourceMaps both option, turn this createMap option off as the map data is stored as part of the source file.

{"createMap": true} or
{"createMap": false}

Babel Maps Add Url

If a source map is created using the Create Map option above then this appends a Url reference //# sourceURL=sourcefile.js.map to the transpiled JavaScript file.

{"babelMapsAddUrl": true} or
{"babelMapsAddUrl": false}

Project Root ( only present in `.languagebabel` files)

A .languagebabel property that defines this directory is a project root. A project root would contain a node_modules folder with an optional babel-core as well as any plugins required.

{"projectRoot": true} or
{"projectRoot": false}

Babel Source Path, Babel Transpile Path and Babel Maps Path

These a directories based on the project root. A project root is either implicit ( based on an Atom folders root directory) or explicit ( based upon the root defined in the nearest .languagebabel file with a property "projectRoot": true )

Only files found under the project/babelsourcepath will be candidates for transpilation. If multiple project root folders exist then babelsourcepath may exist in any or all folders.

The Transpile and Maps paths allow different target directories to be specified. If multiple project root folders exist then they may exist in any or all folders.

e.g. Two project root folders exist /proj1 and /proj2. If Source Path is set to babelSourcethe Transpile Path is set to babelTranspile and the Maps Path is set to babelMaps then:-

/proj1/babelSource/foo.es6 ->/proj1/babelTranspile/foo.js,/proj1/babelMaps/foo.js.map

{
  "projectRoot":  true,    
  "babelSourcePath": "babelSource",
  "babelTranspilePath": "babelTranspile",
  "babelMapsPath": "babelMaps"
}

/proj2/babelSource/dirBar/foo.es6 -> /proj2/lib/foo.js,/proj2/lib/foo.js.map

{
  "projectRoot":  true,
  "babelSourcePath": "babelSource/dirBar",
  "babelTranspilePath": "lib",
  "babelMapsPath": "lib"
}

Create Target Directories

When enabled any target directories that do not exist will be created prior to a transpilation.

{"createTargetDirectories": true} or
{"createTargetDirectories": false}

Keep File Extension

Keeps the source filename extension as the target filename extension

Auto Indent JSX

Enables automatic indenting of JSX.

JavaScript Tagged Template Literal Grammar Extensions

This package setting allows language-babel to include third party grammars to highlight code inside template literal strings. These may be tagged template literals, described here, or where no appropriate function tag exists, another form of tag marking that signifies the templates nature. e.g. A comment string.

For example you may wish to highlight templates prefixed with /* @html */`<div></div>` as HTML, and maybe sql`select * from table foo` as SQL. The latter assumes a tagged function named sql exists in the code.

In order to do this, you need to find a language package that supports the highlighting of the template code. This language package should then be installed into Atom. You then need to find the scope name for that grammar. This can be done in a number of ways, but if you view the grammars JSON/CSON file and look for the scopeName property field, this indicates the scope name for that grammar.

If we use the Atom provided languages language-css, language-html and language-sql in our example above to highlight the template code, then this field would look like.

"(?:css\.(?:[a-z])+)":source.css, /* @html */:text.html.basic, sql:source.sql

In other words, the package settings for this field is an array of strings, with each string in the form of template-prefix:grammar-scopename#optional-include.

where:

template-prefix is a literal string or an Oniguruma regular expression ( Oniguruma is the regular expression engine for TextMate grammars used by Atom) that comes before the opening back-tick of a template. A literal string may contain any characters except a comma but including colons. A regular expression is denoted by being enclosed by double quote marks "RegExp Here". Most importantly, a regular expression should create no capturing groups.
:The last colon in the string signifies the start of the embedded grammars scopeName.
grammar-scopename is the scopeName of the grammar used to highlight the template.
#optional-include if present, will use that include block in the grammars repository.

Styled-Components Auto-Complete Method

This flag if set will enable Emmet snippets to be used inside CSS templates. If a valid emmet abbreviation is entered then the expanded snippet will appear at the top of a auto-complete list. Pressing the appropriate auto-complete key (normally tab) will expand the snippet.

.languagebabel Configuration

.languagebabel JSON configuration files can exist in any directory of the path that contains a source file to be compiled. The properties in this file override the global package settings above. If .languagebabel files are present, they read and merged starting in the source files directory up to the project root directory. Properties defined closest the source file take precedence.

To use this option please enable the Allow Local Override package setting.

A .languagebabel file may contain one or more of the following properties.

{
  "babelMapsPath":                    "relPath",
  "babelMapsAddUrl":                  true|false,
  "babelSourcePath":                  "relPath",
  "babelTranspilePath":               "relPath",
  "createMap":                        true|false,
  "createTargetDirectories":          true|false,
  "createTranspiledCode":             true|false,
  "disableWhenNoBabelrcFileInPath":   true|false,
  "keepFileExtension":                true|false,
  "projectRoot":                      true|false,  
  "suppressSourcePathMessages":       true|false,
  "suppressTranspileOnSaveMessages":  true|false,
  "transpileOnSave":                  true|false
}

GraphQL Code Highlighting

language-babel supports highlighting of GraphQL code within JavaScript files. For highlighting .graphql and .gql files see its sister grammar - language-graphql.

Inside JavaScript, GraphQL enclosed in back-ticks, a.k.a. Quasi or template strings are highlighted. Other GraphQL structures, notably types, are supported by the Flow component of this package.

Strings that have one of three prefixes/tags are parsed by the grammar to highlight the code enclosed.

Relay.QL`This is how Relay uses template strings`

graphql`This is how Relay will use template strings`

gql`This is how Apollo for GraphQL uses template strings`

/* GraphQL */`For cases where no template tag function is available`

An example of using the third method for highlighting code using /* GraphQL */

var { graphql, buildSchema } = require('graphql');

var schema = buildSchema(/* GraphQL */`
  type Query {
    hello: String
  }
`);

Author: Gandm
Source Code: https://github.com/gandm/language-babel
License: MIT License

#es6 #javascript #react #atom #graphql

Mathew Rini

1615544450

How to Select and Hire the Best React JS and React Native Developers?

Since March 2020 reached 556 million monthly downloads have increased, It shows that React JS has been steadily growing. React.js also provides a desirable amount of pliancy and efficiency for developing innovative solutions with interactive user interfaces. It’s no surprise that an increasing number of businesses are adopting this technology. How do you select and recruit React.js developers who will propel your project forward? How much does a React developer make? We’ll bring you here all the details you need.

What is React.js?

Facebook built and maintains React.js, an open-source JavaScript library for designing development tools. React.js is used to create single-page applications (SPAs) that can be used in conjunction with React Native to develop native cross-platform apps.

React vs React Native

React Native is a platform that uses a collection of mobile-specific components provided by the React kit, while React.js is a JavaScript-based library.
React.js and React Native have similar syntax and workflows, but their implementation is quite different.
React Native is designed to create native mobile apps that are distinct from those created in Objective-C or Java. React, on the other hand, can be used to develop web apps, hybrid and mobile & desktop applications.
React Native, in essence, takes the same conceptual UI cornerstones as standard iOS and Android apps and assembles them using React.js syntax to create a rich mobile experience.

What is the Average React Developer Salary?

In the United States, the average React developer salary is $94,205 a year, or $30-$48 per hour, This is one of the highest among JavaScript developers. The starting salary for junior React.js developers is $60,510 per year, rising to $112,480 for senior roles.

* React.js Developer Salary by Country

United States- $120,000
Canada - $110,000
United Kingdom - $71,820
The Netherlands $49,095
Spain - $35,423.00
France - $44,284
Ukraine - $28,990
India - $9,843
Sweden - $55,173
Singapore - $43,801

In context of software developer wage rates, the United States continues to lead. In high-tech cities like San Francisco and New York, average React developer salaries will hit $98K and $114per year, overall.

However, the need for React.js and React Native developer is outpacing local labour markets. As a result, many businesses have difficulty locating and recruiting them locally.

It’s no surprise that for US and European companies looking for professional and budget engineers, offshore regions like India are becoming especially interesting. This area has a large number of app development companies, a good rate with quality, and a good pool of React.js front-end developers.

As per Linkedin, the country’s IT industry employs over a million React specialists. Furthermore, for the same or less money than hiring a React.js programmer locally, you may recruit someone with much expertise and a broader technical stack.

How to Hire React.js Developers?

Conduct thorough candidate research, including portfolios and areas of expertise.
Before you sit down with your interviewing panel, do some homework.
Examine the final outcome and hire the ideal candidate.

Why is React.js Popular?

React is a very strong framework. React.js makes use of a powerful synchronization method known as Virtual DOM, which compares the current page architecture to the expected page architecture and updates the appropriate components as long as the user input.

React is scalable. it utilises a single language, For server-client side, and mobile platform.

React is steady.React.js is completely adaptable, which means it seldom, if ever, updates the user interface. This enables legacy projects to be updated to the most new edition of React.js without having to change the codebase or make a few small changes.

React is adaptable. It can be conveniently paired with various state administrators (e.g., Redux, Flux, Alt or Reflux) and can be used to implement a number of architectural patterns.

Is there a market for React.js programmers?
The need for React.js developers is rising at an unparalleled rate. React.js is currently used by over one million websites around the world. React is used by Fortune 400+ businesses and popular companies such as Facebook, Twitter, Glassdoor and Cloudflare.

Final thoughts:

As you’ve seen, locating and Hire React js Developer and Hire React Native developer is a difficult challenge. You will have less challenges selecting the correct fit for your projects if you identify growing offshore locations (e.g. India) and take into consideration the details above.

If you want to make this process easier, You can visit our website for more, or else to write a email, we’ll help you to finding top rated React.js and React Native developers easier and with strives to create this operation

#hire-react-js-developer #hire-react-native-developer #react #react-native #react-js #hire-react-js-programmer

ES2017, Flow, React JSX and GraphQL Grammar & Transpilation for ATOM

Language-babel

Installation

Auto Completion of JSX tags, elements and attributes

Commenting out JSX elements

Automatic insertion between JSX tags

Automatic Indenting of JSX

Interface to Babel v7, v6 & v5.

Previewing

Transpiling

Package Settings

Allow Local Override

Transpile On Save

Create Transpiled Code

Disable When No Babelrc File In Path

Suppress Transpile On Save Messages

Suppress Source Path Messages

Create Map

Babel Maps Add Url

Project Root ( only present in .languagebabel files)

Babel Source Path, Babel Transpile Path and Babel Maps Path

Create Target Directories

Keep File Extension

Auto Indent JSX

JavaScript Tagged Template Literal Grammar Extensions

Styled-Components Auto-Complete Method

.languagebabel Configuration

GraphQL Code Highlighting

Download Details:

What is GEEK

Buddha Community

How native is React Native? | React Native vs Native App Development

A brief introduction to React Native

Why React Native is fundamentally different from earlier hybrid frameworks

ES2017, Flow, React JSX and GraphQL Grammar & Transpilation for ATOM

Language-babel

Installation

Auto Completion of JSX tags, elements and attributes

Commenting out JSX elements

Automatic insertion between JSX tags

Automatic Indenting of JSX

Interface to Babel v7, v6 & v5.

Previewing

Transpiling

Package Settings

Allow Local Override

Transpile On Save

Create Transpiled Code

Disable When No Babelrc File In Path

Suppress Transpile On Save Messages

Suppress Source Path Messages

Create Map

Babel Maps Add Url

Project Root ( only present in .languagebabel files)

Babel Source Path, Babel Transpile Path and Babel Maps Path

Create Target Directories

Keep File Extension

Auto Indent JSX

JavaScript Tagged Template Literal Grammar Extensions

Styled-Components Auto-Complete Method

.languagebabel Configuration

GraphQL Code Highlighting

Download Details:

React Starter Kit: Build Web Apps with React, Relay and GraphQL.

React Starter Kit — "isomorphic" web app boilerplate

Getting Started

Customization

Comparison

Backers

How to Contribute

Learn More

Related Projects

Support

License

Language-babel: ES2017, Flow, React JSX & GraphQL Grammar

Installation

Auto Completion of JSX tags, elements and attributes

Commenting out JSX elements

Automatic insertion between JSX tags

Automatic Indenting of JSX

Project Root ( only present in `.languagebabel` files)

Project Root ( only present in `.languagebabel` files)

Project Root ( only present in `.languagebabel` files)