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Optimize the library for webpack users #1517
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![Async Logo](https://raw.githubusercontent.com/caolan/async/master/logo/async-logo_readme.jpg) | ||
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[![Build Status via Travis CI](https://travis-ci.org/caolan/async.svg?branch=master)](https://travis-ci.org/caolan/async) | ||
[![NPM version](https://img.shields.io/npm/v/async.svg)](https://www.npmjs.com/package/async) | ||
[![Coverage Status](https://coveralls.io/repos/caolan/async/badge.svg?branch=master)](https://coveralls.io/r/caolan/async?branch=master) | ||
[![Join the chat at https://gitter.im/caolan/async](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/caolan/async?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) | ||
[![libhive - Open source examples](https://www.libhive.com/providers/npm/packages/async/examples/badge.svg)](https://www.libhive.com/providers/npm/packages/async) | ||
[![jsDelivr Hits](https://data.jsdelivr.com/v1/package/npm/async/badge?style=rounded)](https://www.jsdelivr.com/package/npm/async) | ||
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Async is a utility module which provides straight-forward, powerful functions for working with [asynchronous JavaScript](http://caolan.github.io/async/global.html). Although originally designed for use with [Node.js](https://nodejs.org/) and installable via `npm install --save async`, it can also be used directly in the browser. | ||
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This version of the package is optimized for building with webpack. If you use Async in Node.js, install [`async`](https://www.npmjs.com/package/async) instead. | ||
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For Documentation, visit <https://caolan.github.io/async/> | ||
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*For Async v1.5.x documentation, go [HERE](https://github.com/caolan/async/blob/v1.5.2/README.md)* | ||
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```javascript | ||
// for use with callbacks... | ||
import { forEachFor } from "async-es"; | ||
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const images = {cat: "/cat.png", dog: "/dog.png", duck: "/duck.png"}; | ||
const sizes = {}; | ||
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forEachOf(images, (value, key, callback) => { | ||
const imageElem = new Image(); | ||
imageElem.src = value; | ||
imageElem.addEventListener("load", () => { | ||
sizes[key] = { | ||
width: imageElem.naturalWidth, | ||
height: imageElem.naturalHeight, | ||
}; | ||
callback(); | ||
}); | ||
imageElem.addEventListener("error", (e) => { | ||
callback(e); | ||
}); | ||
}, err => { | ||
if (err) console.error(err.message); | ||
// `sizes` is now a map of image sizes | ||
doSomethingWith(sizes); | ||
}); | ||
``` | ||
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```javascript | ||
import { mapLimit } from "async-es"; | ||
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// ...or ES2017 async functions | ||
mapLimit(urls, 5, async function(url) { | ||
const response = await fetch(url) | ||
return response.body | ||
}, (err, results) => { | ||
if (err) throw err | ||
// results is now an array of the response bodies | ||
console.log(results) | ||
}) | ||
``` |
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nit: this should be
import { forEachOf } from "async-es";
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Whoops, thanks! Fixed