Chapter 1: Types A Type By Any Other Name… Chapter 1: Types Most developers would say that a dynamic language (like JS) does not have types. Let’s see what the ES5.1 specifica...

4. FAQ: JavaScript 4.1. What are good references for JavaScript? 4.2. How do I find out what JavaScript features are supported where? 4.3. Where can I look up what features are p...

2.1 Grammar Conventions 2.1 Grammar Conventions The syntactic grammar added by TypeScript language is specified throughout this document using the existing conventions and prod...

Running JavaScript Running Node.js apps Interoperability GraalVM JavaScript Compatibility Is GraalVM compatible with the JavaScript language? Is GraalVM compatible with the ori...

Array Destructuring Destructuring Assignment Default Values Nested Destructuring Rest Items Array Destructuring Array destructuring syntax is very similar to object destruc...

New Methods The Object.is() Method The Object.assign() Method New Methods One of the design goals of ECMAScript beginning with ECMAScript 5 was to avoid creating new global f...

Why is Destructuring Useful? Why is Destructuring Useful? In ECMAScript 5 and earlier, the need to fetch information from objects and arrays could lead to a lot of code that lo...

@babel/parser Credits API babelParser.parse(code, [options]) babelParser.parseExpression(code, [options]) Options Output Semver Example Plugins Miscellaneous Language ext...

Functions with Default Parameter Values Simulating Default Parameter Values in ECMAScript 5 Default Parameter Values in ECMAScript 6 How Default Parameter Values Affect the argum...

Spread Syntax (Spread Element) and Rest parameters Spread Syntax Rest parameter Spread Syntax (Spread Element) and Rest parameters A Spread syntax allows in-place expansion o...