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The Many Faces of Functions in JavaScriptPosted by Leo Balter If you’ve had any contact with JavaScript code, you’re probably very familiar with how to define and call functions, but are you aware of of how many different ways you can define a function? This is a common challenge of writing and maintaining tests in Test262—especially when a new feature comes into contact with any existing function
Common Async/Await Design Patterns in Node.js
Async/await in Node.js opens up a host of powerful design patterns. Tasks that used to take complex libraries or intricate promise chaining can now be done with rudimentary if statements and for loops. I already wrote about these kind of design patterns with co, but async/await makes these patterns accessible in vanilla Node.js, no outside libraries required. Retrying Failed Requests The power of
Native ECMAScript modules: nomodule attribute for the migration
Native ECMAScript modules: nomodule attribute for the migration Serg Hospodarets Blog In one of my previous articles Native ECMAScript modules: the new features and differences from Webpack modules we attempted to detect if the browser supported ES modules. We needed this to determine either, to execute a bundled (classic) file or a script which uses the native ECMAScript module features. We manag
High-performance ES2015 and beyond · V8
Show navigation Over the last couple of months the V8 team focused on bringing the performance of newly added ES2015 and other even more recent JavaScript features on par with their transpiled ES5 counterparts. Motivation #Before we go into the details of the various improvements, we should first consider why performance of ES2015+ features matter despite the widespread usage of Babel in modern we
BucketList App: Getting the Data (part 1) | appendTo
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ライブラリをES2015(ES6)で書いて公開する所から始めよう
この記事はECMAScript 2015の事始めとして、ライブラリをECMAScript 2015で書いて公開するというところから始めるのがいいのではという内容です。 ECMAScript 2015(ES2015)はES6とも呼ばれていてどちらも同じものを指しますが、この記事ではES2015に統一します。 ECMAScriptのバージョンについては次のページを参照してください。 ECMAScript · JavaScriptの入門書 #jsprimer 2018-12-27: 追記 textlint/textlint-rule-helperのmasterはTypeScriptの実装へ変換されています。 Babelの実装はhttps://github.com/textlint/textlint-rule-helper/tree/2.0.1から参照できます Babel から TypeScrip
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