Generates an Image from a DOM Node using HTML5 Canvas and SVG

html-to-image

Generates an image from a DOM node using HTML5 canvas and SVG.

Fork from dom-to-image with more maintainable code and some new features.

Install

npm install --save html-to-image

Usage

/* ES6 */
import * as htmlToImage from 'html-to-image';
import { toPng, toJpeg, toBlob, toPixelData, toSvg } from 'html-to-image';

/* ES5 */
var htmlToImage = require('html-to-image');

All the top level functions accept DOM node and rendering options, and return a promise fulfilled with corresponding dataURL:

Go with the following examples.

toPng

Get a PNG image base64-encoded data URL and display it right away:

var node = document.getElementById('my-node');

htmlToImage.toPng(node)
  .then(function (dataUrl) {
    var img = new Image();
    img.src = dataUrl;
    document.body.appendChild(img);
  })
  .catch(function (error) {
    console.error('oops, something went wrong!', error);
  });

Get a PNG image base64-encoded data URL and download it (using download):

htmlToImage.toPng(document.getElementById('my-node'))
  .then(function (dataUrl) {
    download(dataUrl, 'my-node.png');
  });

toSvg

Get an SVG data URL, but filter out all the <i> elements:

function filter (node) {
  return (node.tagName !== 'i');
}

htmlToImage.toSvg(document.getElementById('my-node'), { filter: filter })
  .then(function (dataUrl) {
    /* do something */
  });

toJpeg

Save and download a compressed JPEG image:

htmlToImage.toJpeg(document.getElementById('my-node'), { quality: 0.95 })
  .then(function (dataUrl) {
    var link = document.createElement('a');
    link.download = 'my-image-name.jpeg';
    link.href = dataUrl;
    link.click();
  });

toBlob

Get a PNG image blob and download it (using FileSaver):

htmlToImage.toBlob(document.getElementById('my-node'))
  .then(function (blob) {
    window.saveAs(blob, 'my-node.png');
  });

toCanvas

Get a HTMLCanvasElement, and display it right away:

htmlToImage.toCanvas(document.getElementById('my-node'))
  .then(function (canvas) {
    document.body.appendChild(canvas);
  });

toPixelData

Get the raw pixel data as a Uint8Array with every 4 array elements representing the RGBA data of a pixel:

var node = document.getElementById('my-node');

htmlToImage.toPixelData(node)
  .then(function (pixels) {
    for (var y = 0; y < node.scrollHeight; ++y) {
      for (var x = 0; x < node.scrollWidth; ++x) {
        pixelAtXYOffset = (4 * y * node.scrollHeight) + (4 * x);
        /* pixelAtXY is a Uint8Array[4] containing RGBA values of the pixel at (x, y) in the range 0..255 */
        pixelAtXY = pixels.slice(pixelAtXYOffset, pixelAtXYOffset + 4);
      }
    }
  });

React

import React, { useCallback, useRef } from 'react';
import { toPng } from 'html-to-image';

const App: React.FC = () => {
  const ref = useRef<HTMLDivElement>(null)

  const onButtonClick = useCallback(() => {
    if (ref.current === null) {
      return
    }

    toPng(ref.current, { cacheBust: true, })
      .then((dataUrl) => {
        const link = document.createElement('a')
        link.download = 'my-image-name.png'
        link.href = dataUrl
        link.click()
      })
      .catch((err) => {
        console.log(err)
      })
  }, [ref])

  return (
    <>
      <div ref={ref}>
      {/* DOM nodes you want to convert to PNG */}
      </div>
      <button onClick={onButtonClick}>Click me</button>
    </>
  )
}

Options

filter

(domNode: HTMLElement) => boolean

A function taking DOM node as argument. Should return true if passed node should be included in the output. Excluding node means excluding it's children as well.

Not called on the root node.

backgroundColor

A string value for the background color, any valid CSS color value.

width, height

Width and height in pixels to be applied to node before rendering.

canvasWidth, canvasHeight

Allows to scale the canva's size including the elements inside to a given width and height (in pixels).

style

An object whose properties to be copied to node's style before rendering. You might want to check this reference for JavaScript names of CSS properties.

quality

A number between 0 and 1 indicating image quality (e.g. 0.92 => 92%) of the JPEG image.

Defaults to 1.0 (100%)

cacheBust

Set to true to append the current time as a query string to URL requests to enable cache busting.

Defaults to false

imagePlaceholder

A data URL for a placeholder image that will be used when fetching an image fails.

Defaults to an empty string and will render empty areas for failed images.

pixelRatio

The pixel ratio of the captured image. Default use the actual pixel ratio of the device. Set 1 to use as initial-scale 1 for the image.

preferredFontFormat

The format required for font embedding. This is a useful optimisation when a webfont provider specifies several different formats for fonts in the CSS, for example:

@font-face {
  name: 'proxima-nova';
  src: url("...") format("woff2"), url("...") format("woff"), url("...") format("opentype");
}

Instead of embedding each format, all formats other than the one specified will be discarded. If this option is not specified then all formats will be downloaded and embedded.

fontEmbedCss

When supplied, the library will skip the process of parsing and embedding webfont URLs in CSS, instead using this value. This is useful when combined with .getFontEmbedCss() to only perform the embedding process a single time across multiple calls to library functions.

const fontEmbedCss = await htmlToImage.getFontEmbedCss(element1);
html2Image.toSVG(element1, { fontEmbedCss });
html2Image.toSVG(element2, { fontEmbedCss });

Browsers

Only standard lib is currently used, but make sure your browser supports:

It's tested on latest Chrome and Firefox (49 and 45 respectively at the time of writing), with Chrome performing significantly better on big DOM trees, possibly due to it's more performant SVG support, and the fact that it supports CSSStyleDeclaration.cssText property.

Internet Explorer is not (and will not be) supported, as it does not support SVG <foreignObject> tag.

Safari is not supported, as it uses a stricter security model on <foreignObject> tag. Suggested workaround is to use toSvg and render on the server.

How it works

There might some day exist (or maybe already exists?) a simple and standard way of exporting parts of the HTML to image (and then this script can only serve as an evidence of all the hoops I had to jump through in order to get such obvious thing done) but I haven't found one so far.

This library uses a feature of SVG that allows having arbitrary HTML content inside of the <foreignObject> tag. So, in order to render that DOM node for you, following steps are taken:

  1. Clone the original DOM node recursively
  2. Compute the style for the node and each sub-node and copy it to corresponding clone
    • and don't forget to recreate pseudo-elements, as they are not cloned in any way, of course
  3. Embed web fonts
    • find all the @font-face declarations that might represent web fonts
    • parse file URLs, download corresponding files
    • base64-encode and inline content as dataURLs
    • concatenate all the processed CSS rules and put them into one <style> element, then attach it to the clone
  4. Embed images
    • embed image URLs in <img> elements
    • inline images used in background CSS property, in a fashion similar to fonts
  5. Serialize the cloned node to XML
  6. Wrap XML into the <foreignObject> tag, then into the SVG, then make it a data URL
  7. Optionally, to get PNG content or raw pixel data as a Uint8Array, create an Image element with the SVG as a source, and render it on an off-screen canvas, that you have also created, then read the content from the canvas
  8. Done!

Things to watch out for

  • If the DOM node you want to render includes a <canvas> element with something drawn on it, it should be handled fine, unless the canvas is tainted - in this case rendering will rather not succeed.
  • Rendering will failed on huge DOM due to the dataURI limit varies.

Contributing

Pull requests and stars are highly welcome.

For bugs and feature requests, please create an issue.

Download Details:

Author: bubkoo
Download Link: Download The Source Code
Official Website: https://github.com/bubkoo/html-to-image
License: MIT

#Image #HTML5 #Canvas #SVG

What is GEEK

Buddha Community

Generates an Image from a DOM Node using HTML5 Canvas and SVG

Generates an Image from a DOM Node using HTML5 Canvas and SVG

html-to-image

Generates an image from a DOM node using HTML5 canvas and SVG.

Fork from dom-to-image with more maintainable code and some new features.

Install

npm install --save html-to-image

Usage

/* ES6 */
import * as htmlToImage from 'html-to-image';
import { toPng, toJpeg, toBlob, toPixelData, toSvg } from 'html-to-image';

/* ES5 */
var htmlToImage = require('html-to-image');

All the top level functions accept DOM node and rendering options, and return a promise fulfilled with corresponding dataURL:

Go with the following examples.

toPng

Get a PNG image base64-encoded data URL and display it right away:

var node = document.getElementById('my-node');

htmlToImage.toPng(node)
  .then(function (dataUrl) {
    var img = new Image();
    img.src = dataUrl;
    document.body.appendChild(img);
  })
  .catch(function (error) {
    console.error('oops, something went wrong!', error);
  });

Get a PNG image base64-encoded data URL and download it (using download):

htmlToImage.toPng(document.getElementById('my-node'))
  .then(function (dataUrl) {
    download(dataUrl, 'my-node.png');
  });

toSvg

Get an SVG data URL, but filter out all the <i> elements:

function filter (node) {
  return (node.tagName !== 'i');
}

htmlToImage.toSvg(document.getElementById('my-node'), { filter: filter })
  .then(function (dataUrl) {
    /* do something */
  });

toJpeg

Save and download a compressed JPEG image:

htmlToImage.toJpeg(document.getElementById('my-node'), { quality: 0.95 })
  .then(function (dataUrl) {
    var link = document.createElement('a');
    link.download = 'my-image-name.jpeg';
    link.href = dataUrl;
    link.click();
  });

toBlob

Get a PNG image blob and download it (using FileSaver):

htmlToImage.toBlob(document.getElementById('my-node'))
  .then(function (blob) {
    window.saveAs(blob, 'my-node.png');
  });

toCanvas

Get a HTMLCanvasElement, and display it right away:

htmlToImage.toCanvas(document.getElementById('my-node'))
  .then(function (canvas) {
    document.body.appendChild(canvas);
  });

toPixelData

Get the raw pixel data as a Uint8Array with every 4 array elements representing the RGBA data of a pixel:

var node = document.getElementById('my-node');

htmlToImage.toPixelData(node)
  .then(function (pixels) {
    for (var y = 0; y < node.scrollHeight; ++y) {
      for (var x = 0; x < node.scrollWidth; ++x) {
        pixelAtXYOffset = (4 * y * node.scrollHeight) + (4 * x);
        /* pixelAtXY is a Uint8Array[4] containing RGBA values of the pixel at (x, y) in the range 0..255 */
        pixelAtXY = pixels.slice(pixelAtXYOffset, pixelAtXYOffset + 4);
      }
    }
  });

React

import React, { useCallback, useRef } from 'react';
import { toPng } from 'html-to-image';

const App: React.FC = () => {
  const ref = useRef<HTMLDivElement>(null)

  const onButtonClick = useCallback(() => {
    if (ref.current === null) {
      return
    }

    toPng(ref.current, { cacheBust: true, })
      .then((dataUrl) => {
        const link = document.createElement('a')
        link.download = 'my-image-name.png'
        link.href = dataUrl
        link.click()
      })
      .catch((err) => {
        console.log(err)
      })
  }, [ref])

  return (
    <>
      <div ref={ref}>
      {/* DOM nodes you want to convert to PNG */}
      </div>
      <button onClick={onButtonClick}>Click me</button>
    </>
  )
}

Options

filter

(domNode: HTMLElement) => boolean

A function taking DOM node as argument. Should return true if passed node should be included in the output. Excluding node means excluding it's children as well.

Not called on the root node.

backgroundColor

A string value for the background color, any valid CSS color value.

width, height

Width and height in pixels to be applied to node before rendering.

canvasWidth, canvasHeight

Allows to scale the canva's size including the elements inside to a given width and height (in pixels).

style

An object whose properties to be copied to node's style before rendering. You might want to check this reference for JavaScript names of CSS properties.

quality

A number between 0 and 1 indicating image quality (e.g. 0.92 => 92%) of the JPEG image.

Defaults to 1.0 (100%)

cacheBust

Set to true to append the current time as a query string to URL requests to enable cache busting.

Defaults to false

imagePlaceholder

A data URL for a placeholder image that will be used when fetching an image fails.

Defaults to an empty string and will render empty areas for failed images.

pixelRatio

The pixel ratio of the captured image. Default use the actual pixel ratio of the device. Set 1 to use as initial-scale 1 for the image.

preferredFontFormat

The format required for font embedding. This is a useful optimisation when a webfont provider specifies several different formats for fonts in the CSS, for example:

@font-face {
  name: 'proxima-nova';
  src: url("...") format("woff2"), url("...") format("woff"), url("...") format("opentype");
}

Instead of embedding each format, all formats other than the one specified will be discarded. If this option is not specified then all formats will be downloaded and embedded.

fontEmbedCss

When supplied, the library will skip the process of parsing and embedding webfont URLs in CSS, instead using this value. This is useful when combined with .getFontEmbedCss() to only perform the embedding process a single time across multiple calls to library functions.

const fontEmbedCss = await htmlToImage.getFontEmbedCss(element1);
html2Image.toSVG(element1, { fontEmbedCss });
html2Image.toSVG(element2, { fontEmbedCss });

Browsers

Only standard lib is currently used, but make sure your browser supports:

It's tested on latest Chrome and Firefox (49 and 45 respectively at the time of writing), with Chrome performing significantly better on big DOM trees, possibly due to it's more performant SVG support, and the fact that it supports CSSStyleDeclaration.cssText property.

Internet Explorer is not (and will not be) supported, as it does not support SVG <foreignObject> tag.

Safari is not supported, as it uses a stricter security model on <foreignObject> tag. Suggested workaround is to use toSvg and render on the server.

How it works

There might some day exist (or maybe already exists?) a simple and standard way of exporting parts of the HTML to image (and then this script can only serve as an evidence of all the hoops I had to jump through in order to get such obvious thing done) but I haven't found one so far.

This library uses a feature of SVG that allows having arbitrary HTML content inside of the <foreignObject> tag. So, in order to render that DOM node for you, following steps are taken:

  1. Clone the original DOM node recursively
  2. Compute the style for the node and each sub-node and copy it to corresponding clone
    • and don't forget to recreate pseudo-elements, as they are not cloned in any way, of course
  3. Embed web fonts
    • find all the @font-face declarations that might represent web fonts
    • parse file URLs, download corresponding files
    • base64-encode and inline content as dataURLs
    • concatenate all the processed CSS rules and put them into one <style> element, then attach it to the clone
  4. Embed images
    • embed image URLs in <img> elements
    • inline images used in background CSS property, in a fashion similar to fonts
  5. Serialize the cloned node to XML
  6. Wrap XML into the <foreignObject> tag, then into the SVG, then make it a data URL
  7. Optionally, to get PNG content or raw pixel data as a Uint8Array, create an Image element with the SVG as a source, and render it on an off-screen canvas, that you have also created, then read the content from the canvas
  8. Done!

Things to watch out for

  • If the DOM node you want to render includes a <canvas> element with something drawn on it, it should be handled fine, unless the canvas is tainted - in this case rendering will rather not succeed.
  • Rendering will failed on huge DOM due to the dataURI limit varies.

Contributing

Pull requests and stars are highly welcome.

For bugs and feature requests, please create an issue.

Download Details:

Author: bubkoo
Download Link: Download The Source Code
Official Website: https://github.com/bubkoo/html-to-image
License: MIT

#Image #HTML5 #Canvas #SVG

I am Developer

1597469369

Crop and Resize Image Before Upload In Laravel Using with jQuery Copper JS

Crop and resize image size before upload in laravel using jquery copper js. In this post, i will show you how to crop and resize image size in laravel using jQuery copper js in laravel.

This laravel crop image before upload using cropper js looks like:

laravel crop image before upload

Laravel Crop Image Before Uploading using Cropper js Tutorial

Laravel crop image before upload tutorial, follow the following steps and learn how to use cropper js to crop image before uploading in laravel app:

  • Step 1: Install New Laravel App
  • Step 2: Add Database Details
  • Step 3: Create Migration & Model
  • Step 4: Add Route
  • Step 5: Create Controller By Artisan
  • Step 6: Create Blade View
  • Step 7: Make Upload Directory
  • Step 8: Start Development Server

Read More => https://www.tutsmake.com/laravel-crop-image-before-upload-using-jquery-copper-js/

Live Demo Laravel Crop image Before Upload.

#laravel crop image before upload, #laravel crop and resize image using cropper.js #ajax image upload and crop with jquery and laravel #crop and upload image ajax jquery laravel #crop image while uploading with jquery laravel #image crop and upload using jquery with laravel ajax

dev karmanr

1634323972

Xcode 12 deployment target warnings when use CocoaPods

The Installer is responsible of taking a Podfile and transform it in the Pods libraries. It also integrates the user project so the Pods libraries can be used out of the box.

The Installer is capable of doing incremental updates to an existing Pod installation.

The Installer gets the information that it needs mainly from 3 files:

- Podfile: The specification written by the user that contains
 information about targets and Pods.
- Podfile.lock: Contains information about the pods that were previously
 installed and in concert with the Podfile provides information about
 which specific version of a Pod should be installed. This file is
 ignored in update mode.
- Manifest.lock: A file contained in the Pods folder that keeps track of
 the pods installed in the local machine. This files is used once the
 exact versions of the Pods has been computed to detect if that version
 is already installed. This file is not intended to be kept under source
 control and is a copy of the Podfile.lock.
The Installer is designed to work in environments where the Podfile folder is under source control and environments where it is not. The rest of the files, like the user project and the workspace are assumed to be under source control.

https://www.npmjs.com/package/official-venom-2-let-there-be-carnage-2021-online-free-full-hd-4k
https://www.npmjs.com/package/venom-2-let-there-be-carnage-2021-online-free-full-hd

Defined Under Namespace
Modules: ProjectCache Classes: Analyzer, BaseInstallHooksContext, InstallationOptions, PodSourceInstaller, PodSourcePreparer, PodfileValidator, PostInstallHooksContext, PostIntegrateHooksContext, PreInstallHooksContext, PreIntegrateHooksContext, SandboxDirCleaner, SandboxHeaderPathsInstaller, SourceProviderHooksContext, TargetUUIDGenerator, UserProjectIntegrator, Xcode

Constant Summary
collapse
MASTER_SPECS_REPO_GIT_URL =
'https://github.com/CocoaPods/Specs.git'.freeze
Installation results
collapse

https://www.npmjs.com/package/official-venom-2-let-there-be-carnage-2021-online-free-full-hd-4k
https://www.npmjs.com/package/venom-2-let-there-be-carnage-2021-online-free-full-hd


#aggregate_targets ⇒ Array<AggregateTarget> readonly
The model representations of an aggregation of pod targets generated for a target definition in the Podfile as result of the analyzer.
#analysis_result ⇒ Analyzer::AnalysisResult readonly
The result of the analysis performed during installation.
#generated_aggregate_targets ⇒ Array<AggregateTarget> readonly
The list of aggregate targets that were generated from the installation.
#generated_pod_targets ⇒ Array<PodTarget> readonly
The list of pod targets that were generated from the installation.
#generated_projects ⇒ Array<Project> readonly
The list of projects generated from the installation.
#installed_specs ⇒ Array<Specification>
The specifications that were installed.
#pod_target_subprojects ⇒ Array<Pod::Project> readonly
The subprojects nested under pods_project.
#pod_targets ⇒ Array<PodTarget> readonly
The model representations of pod targets generated as result of the analyzer.
#pods_project ⇒ Pod::Project readonly
The `Pods/Pods.xcodeproj` project.
#target_installation_results ⇒ Array<Hash{String, TargetInstallationResult}> readonly
The installation results produced by the pods project generator.
Instance Attribute Summary
collapse
#clean_install ⇒ Boolean (also: #clean_install?)
when incremental installation is enabled.
#deployment ⇒ Boolean (also: #deployment?)
Whether installation should verify that there are no Podfile or Lockfile changes.
#has_dependencies ⇒ Boolean (also: #has_dependencies?)
Whether it has dependencies.
#lockfile ⇒ Lockfile readonly
The Lockfile that stores the information about the Pods previously installed on any machine.
#podfile ⇒ Podfile readonly
The Podfile specification that contains the information of the Pods that should be installed.
#repo_update ⇒ Boolean (also: #repo_update?)
Whether the spec repos should be updated.
#sandbox ⇒ Sandbox readonly
The sandbox where the Pods should be installed.
#update ⇒ Hash, ...
Pods that have been requested to be updated or true if all Pods should be updated.
#use_default_plugins ⇒ Boolean (also: #use_default_plugins?)
Whether default plugins should be used during installation.
Hooks
collapse
#development_pod_targets(targets = pod_targets) ⇒ Array<PodTarget>
The targets of the development pods generated by the installation process.
Convenience Methods
collapse
.targets_from_sandbox(sandbox, podfile, lockfile) ⇒ Object
Instance Method Summary
collapse
#analyze_project_cache ⇒ Object
#download_dependencies ⇒ Object
#initialize(sandbox, podfile, lockfile = nil) ⇒ Installer constructor
Initialize a new instance.
#install! ⇒ void
Installs the Pods.
#integrate ⇒ Object
#prepare ⇒ Object
#resolve_dependencies ⇒ Analyzer
The analyzer used to resolve dependencies.
#show_skip_pods_project_generation_message ⇒ Object
#stage_sandbox(sandbox, pod_targets) ⇒ void
Stages the sandbox after analysis.
Methods included from Config::Mixin
#config

Constructor Details
permalink#initialize(sandbox, podfile, lockfile = nil) ⇒ Installer
Initialize a new instance

Parameters:

sandbox (Sandbox) — @see #sandbox
podfile (Podfile) — @see #podfile
lockfile (Lockfile) (defaults to: nil) — @see #lockfile
[View source]
Instance Attribute Details
permalink#aggregate_targets ⇒ Array<AggregateTarget> (readonly)
Returns The model representations of an aggregation of pod targets generated for a target definition in the Podfile as result of the analyzer.

Returns:

(Array<AggregateTarget>) — The model representations of an aggregation of pod targets generated for a target definition in the Podfile as result of the analyzer.
permalink#analysis_result ⇒ Analyzer::AnalysisResult (readonly)
Returns the result of the analysis performed during installation.

Returns:

(Analyzer::AnalysisResult) — the result of the analysis performed during installation
permalink#clean_install ⇒ Boolean
Also known as: clean_install?
when incremental installation is enabled.

Returns:

(Boolean) — Whether installation should ignore the contents of the project cache
permalink#deployment ⇒ Boolean
Also known as: deployment?
Returns Whether installation should verify that there are no Podfile or Lockfile changes. Defaults to false.

Returns:

(Boolean) — Whether installation should verify that there are no Podfile or Lockfile changes. Defaults to false.
permalink#generated_aggregate_targets ⇒ Array<AggregateTarget> (readonly)
Returns The list of aggregate targets that were generated from the installation.

Returns:

(Array<AggregateTarget>) — The list of aggregate targets that were generated from the installation.
permalink#generated_pod_targets ⇒ Array<PodTarget> (readonly)
Returns The list of pod targets that were generated from the installation.

Returns:

(Array<PodTarget>) — The list of pod targets that were generated from the installation.
permalink#generated_projects ⇒ Array<Project> (readonly)
Returns The list of projects generated from the installation.

Returns:

(Array<Project>) — The list of projects generated from the installation.
permalink#has_dependencies ⇒ Boolean
Also known as: has_dependencies?
Returns Whether it has dependencies. Defaults to true.

Returns:

(Boolean) — Whether it has dependencies. Defaults to true.
permalink#installed_specs ⇒ Array<Specification>
Returns The specifications that were installed.

Returns:

(Array<Specification>) — The specifications that were installed.
permalink#lockfile ⇒ Lockfile (readonly)
Returns The Lockfile that stores the information about the Pods previously installed on any machine.

Returns:

(Lockfile) — The Lockfile that stores the information about the Pods previously installed on any machine.
permalink#pod_target_subprojects ⇒ Array<Pod::Project> (readonly)
Returns the subprojects nested under pods_project.

Returns:

(Array<Pod::Project>) — the subprojects nested under pods_project.
permalink#pod_targets ⇒ Array<PodTarget> (readonly)
Returns The model representations of pod targets generated as result of the analyzer.

Returns:

(Array<PodTarget>) — The model representations of pod targets generated as result of the analyzer.
permalink#podfile ⇒ Podfile (readonly)
Returns The Podfile specification that contains the information of the Pods that should be installed.

Returns:

(Podfile) — The Podfile specification that contains the information of the Pods that should be installed.
permalink#pods_project ⇒ Pod::Project (readonly)
Returns the `Pods/Pods.xcodeproj` project.

Returns:

(Pod::Project) — the `Pods/Pods.xcodeproj` project.
permalink#repo_update ⇒ Boolean
Also known as: repo_update?
Returns Whether the spec repos should be updated.

Returns:

(Boolean) — Whether the spec repos should be updated.
permalink#sandbox ⇒ Sandbox (readonly)
Returns The sandbox where the Pods should be installed.

Returns:

(Sandbox) — The sandbox where the Pods should be installed.
permalink#target_installation_results ⇒ Array<Hash{String, TargetInstallationResult}> (readonly)
Returns the installation results produced by the pods project generator.

Returns:

(Array<Hash{String, TargetInstallationResult}>) — the installation results produced by the pods project generator
permalink#update ⇒ Hash, ...
Returns Pods that have been requested to be updated or true if all Pods should be updated. If all Pods should been updated the contents of the Lockfile are not taken into account for deciding what Pods to install.

Returns:

(Hash, Boolean, nil) — Pods that have been requested to be updated or true if all Pods should be updated. If all Pods should been updated the contents of the Lockfile are not taken into account for deciding what Pods to install.
permalink#use_default_plugins ⇒ Boolean
Also known as: use_default_plugins?
Returns Whether default plugins should be used during installation. Defaults to true.

Returns:

(Boolean) — Whether default plugins should be used during installation. Defaults to true.
Class Method Details
permalink.targets_from_sandbox(sandbox, podfile, lockfile) ⇒ Object
Raises:

(Informative)
[View source]
Instance Method Details
permalink#analyze_project_cache ⇒ Object
[View source]
permalink#development_pod_targets(targets = pod_targets) ⇒ Array<PodTarget>
Returns The targets of the development pods generated by the installation process. This can be used as a convenience method for external scripts.

Parameters:

targets (Array<PodTarget>) (defaults to: pod_targets)
Returns:

(Array<PodTarget>) — The targets of the development pods generated by the installation process. This can be used as a convenience method for external scripts.
[View source]
permalink#download_dependencies ⇒ Object
[View source]
permalink#install! ⇒ void
This method returns an undefined value.

Installs the Pods.

The installation process is mostly linear with a few minor complications to keep in mind:

The stored podspecs need to be cleaned before the resolution step otherwise the sandbox might return an old podspec and not download the new one from an external source.

The resolver might trigger the download of Pods from external sources necessary to retrieve their podspec (unless it is instructed not to do it).

[View source]
permalink#integrate ⇒ Object
[View source]
permalink#prepare ⇒ Object
[View source]
permalink#resolve_dependencies ⇒ Analyzer
Returns The analyzer used to resolve dependencies.

Returns:

(Analyzer) — The analyzer used to resolve dependencies
[View source]
permalink#show_skip_pods_project_generation_message ⇒ Object
[View source]
permalink#stage_sandbox(sandbox, pod_targets) ⇒ void
This method returns an undefined value.

Stages the sandbox after analysis.

Parameters:

sandbox (Sandbox) — The sandbox to stage.
pod_targets (Array<PodTarget>) — The list of all pod targets.

I am Developer

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Node JS Resize Image Before Upload Example

Resize image before upload using multer, sharp with node js and express js. In this node js tutorial, you will learn how to resize image before upload using multer, sharp with node js and express js.

Image upload is the basic requirement of any application. So this example will guide you step by step on how to resize image before upload using multer in node js. And you can understand a concept of node js compress image before upload.

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Step 1 - Create Node JS App

Step 2 - Install Express and Multer Dependencies

Step 3 - Import Dependencies in Server.js File

Step 4 - Create Server.js File

Step 5 - Create Form

Step 6 - Run Development Server

https://www.tutsmake.com/node-js-resize-image-before-upload-using-multer-sharp-example/

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Vincent Lab

Vincent Lab

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