2.1 Token与Tokenizer   简单起见，我们使用js代码作为示例，来了解一下js的Token相关内容，以加深对Token的理解，代码如下： if ( b === true ) alert ( "true" ) ;   在浏览器中输入网址：http://esprima.org/demo/p...

2.4. Keys 2.4. Keys In order to efficiently retrieve records stored in an indexed database, each record is organized according to its key. A key has an associated type whic...

What Is JSX? Notes What Is JSX? JSX is an XML/HTML-like syntax used by React that extends ECMAScript so that XML/HTML-like text can co-exist with JavaScript/React code. The sy...

24. Modules 24.1. Before modules: scripts 24.2. Module systems created prior to ES6 24.2.1. Server side: CommonJS modules 24.2.2. Client side: AMD (Asynchronous Module Definition...

TypeScript 3.8 Type-Only Imports and Export ECMAScript Private Fields Which should I use? export * as ns Syntax Top-Level await es2020 for target and module JSDoc Prope...

Abstract Abstract This document defines a set of ECMAScript APIs in WebIDL to allow media and generic application data to be sent to and received from another browser or device...

Buffers和ES6迭代器 Buffers和ES6迭代器 Buffers 可以通过 ECMAScript 2015 (ES6) 的 for..of 语法进行遍历。 const buf = Buffer (. from [ 1 , 2 , 3 ]); for ( var b of buf ) consol...

5.1 Blocks 5.1 Blocks Blocks are extended to include local interface, type alias, and enum declarations (classes are already included by the ECMAScript 2015 grammar).   Declar...

5.7 Further reading and sources of this chapter 5.7 Further reading and sources of this chapter The Wikipedia page on “modulo operation” has much information. The ECMAScript ...

Iterators and Generators Iterables Iterable interface for..of statements for..of vs. for..in statements Code generation Targeting ES5 and ES3 Targeting ECMAScript 2015 and...