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Dead simple state management for React
# Using Yarn:
yarn add undux
# Or, using NPM:
npm install undux --save
# Using Yarn:
yarn add undux@^3
# Or, using NPM:
npm install undux@^3 --save
get
and set
import { createConnectedStore } from 'undux'
// Create a store with an initial value.
export default createConnectedStore({
one: 0,
two: 0
})
Be sure to define a key for each value in your model, even if the value is initially undefined
.
import Store from './MyStore'
// Re-render the component when the store updates.
function MyComponent() {
let store = Store.useStore()
return <div>
<NumberInput onChange={store.set('one')} value={store.get('one')} />
<NumberInput onChange={store.set('two')} value={store.get('two')} />
Sum: {store.get('one') + store.get('two')}
</div>
}
function NumberInput() {
return <input
onChange={e => this.props.onChange(parseInt(e.target.value, 10))}
type="number"
value={this.props.value}
/>
}
export default MyComponent
import Store from './MyStore'
// Re-render the component when the store updates.
class MyComponent extends React.Component {
render() {
let store = this.props.store
return <div>
<NumberInput onChange={store.set('one')} value={store.get('one')} />
<NumberInput onChange={store.set('two')} value={store.get('two')} />
Sum: {store.get('one') + store.get('two')}
</div>
}
}
class NumberInput extends React.Component {
render() {
return <input
onChange={e => this.props.onChange(parseInt(e.target.value, 10))}
type="number"
value={this.props.value}
/>
}
}
export default Store.withStore(MyComponent)
import MyComponent from './MyComponent'
import Store from './MyStore'
class MyApp extends React.Component {
render() {
return <Store.Container>
<MyComponent />
</Store.Container>
}
}
export default MyApp
That’s all there is to it.
Though Undux automatically re-renders your connected React components for you when the store updates, it also lets you subscribe to changes to specific fields on your store. Undux subscriptions are full Rx observables, so you have fine control over how you react to a change:
import { debounce, filter } from 'rxjs/operators'
store
.on('today')
.pipe(
filter(date => date.getTime() % 2 === 0), // Only even timestamps.
debounce(100) // Fire at most once every 100ms.
)
.subscribe(date =>
console.log('Date changed to', date)
)
You can even use Effects to trigger a change in response to an update:
store
.on('today')
.pipe(
debounce(100)
)
.subscribe(async date => {
let users = await api.get({ since: date })
store.set('users')(users)
})
In order to keep its footprint small, Undux does not come with RxJS out of the box. However, Undux does come with a minimal implementation of parts of RxJS, which interoperates with RxJS operators. To use RxJS operators, you’ll need to install RxJS first:
npm install rxjs --save
Partially apply the set
function to yield a convenient setter:
let setUsers = store.set('users')
setUsers(['amy'])
setUsers(['amy', 'bob'])
Undux works out of the box with the Redux Devtools browser extension (download: Chrome, Firefox, React Native). To enable it, just wrap your store with the Redux Devtools plugin:
import { createConnectedStore, withReduxDevtools } from 'undux'
let store = createConnectedStore(initialState, withReduxDevtools)
Redux Devtools has an inspector, a time travel debugger, and jump-to-state built in. All of these features are enabled for Undux as well. It looks like this:
Alternatively, Undux has a simple, console-based debugger built in. Just create your store with withLogger
higher order store, and all model updates (which key was updated, previous value, and new value) will be logged to the console.
To enable the logger, simply import withLogger
and wrap your store with it:
import { createConnectedStore, withLogger } from 'undux'
let store = createConnectedStore(initialState, withLogger)
The logger will produce logs that look like this:
Undux is easy to modify with effects. Just define a function that takes a store as an argument, adding listeners along the way. For generic plugins that work across different stores, use the .onAll
method to listen on all changes on a store:
// MyStore.ts (if using TypeScript)
import { Effects } from 'undux'
type State = {
// ...
}
export type StoreEffects = Effects<State>
// MyEffects.ts
import { StoreEffects } from './MyStore'
let withLocalStorage: StoreEffects = store => {
// Listen on all changes to the store.
store.onAll().subscribe(({ key, value, previousValue }) =>
console.log(key, 'changed from', previousValue, 'to', value)
)
}
import { createConnectedStore, Effects, Store } from 'undux'
type State = {
foo: number
bar: string[]
}
let initialState: State = {
foo: 12,
bar: []
}
export default createConnectedStore(initialState)
export type StoreProps = {
store: Store<State>
}
export type StoreEffects = Effects<State>
See full example (in JavaScript, TypeScript, or Flow) here.
Have your own props? No problem.
import MyStore, { StoreProps } from './MyStore'
type Props = StoreProps & {
foo: number
}
function MyComponent(props: Props) {
return <>
Today is {props.store.get('today')}
Foo is {props.foo}
</>
}
export default MyStore.withStore(MyComponent)
// Usage
<MyComponent foo={3} />
See full example (in JavaScript, TypeScript, or Flow) here.
Undux is as easy to use with stateful components as with stateless ones.
import MyStore, { StoreProps } from './MyStore'
type Props = StoreProps & {
foo: number
}
class MyComponent extends React.Component<Props> {
render() {
return <>
Today is {this.props.store.get('today')}
Foo is {this.props.foo}
</>
}
}
export default MyStore.withStore(MyComponent)
// Usage
<MyComponent foo={3} />
See full example (in JavaScript, TypeScript, or Flow) here.
See a full example here.
See the Undux TodoMVC example here.
Goal #1 is total type-safety.
Getting, setting, reading, and listening on model updates is 100% type-safe: use a key that isn’t defined in your model or set a key to the wrong type, and you’ll get a compile-time error. And connected components and Effects are just as type-safe.
Goal #2 is letting you write as little boilerplate as possible.
Define your model in a single place, and use it anywhere safely. No need to define tedious boilerplate for each field on your model. Container components and action creators are optional - most of the time you don’t need them, and can introduce them only where needed as your application grows.
Goal #3 is familiar abstractions.
No need to learn about Actions, Reducers, or any of that. Just call get
and set
, and everything works just as you expect.
yarn test
Author: bcherny
Official Website: https://github.com/bcherny/undux
#reactjs #javascript
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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.
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:
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:
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
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As we start learning new technologies we want to start building something or work on a simple project to get a better understanding of the technology. So, let’s build this simple app.
For this app, we will be using PokeApi to get our pokemon data, and also we will be using Hooks. I am using pokemondb for pokemon sprites. It’s just a personal preference you can use whatever you want.
#react-native #react-native-app #react-navigation #react-native-development #react
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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.
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.
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.
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.
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.
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
1651604400
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:
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:
master
)feature/redux
)feature/apollo
)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!
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 |
♥ React Starter Kit? Help us keep it alive by donating funds to cover project expenses via OpenCollective or Bountysource!
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.
Copyright © 2014-present Kriasoft, LLC. This source code is licensed under the MIT license found in the LICENSE.txt file. The documentation to the project is licensed under the CC BY-SA 4.0 license.
Author: kriasoft
Source Code: https://github.com/kriasoft/react-starter-kit
License: MIT License
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