For a more in-depth guide on how these features work and can be configured, see Working with JavaScript. Extensions from the VS Code Marketplace can augment or change most of these built-in features. This page summarizes the JavaScript features that VS Code ships with. Most of these features just work out of the box, while some may require basic configuration to get the best experience. Visual Studio Code includes built-in JavaScript IntelliSense, debugging, formatting, code navigation, refactorings, and many other advanced language features. Configure IntelliSense for cross-compiling.Object.getOwnPropertySymbols(.) Static Function.entries(), values(), keys() Prototype Methods.Preview features likely coming to JS beyond ES6.Extend your program’s capabilities through meta programming.Leverage new API helpers, including Array, Object, Math, Number, and String.Use collections to work more efficiently with data in structured ways.Express async flow control with Promises combined with generators.

Organize code with iterators, generators, modules, and classes.Learn new ES6 syntax that eases the pain points of common programming idioms.

Armed with this knowledge, you can achieve true JavaScript mastery. Like other books in this series, You Don’t Know JS: ES6 & Beyond dives into trickier parts of the language that many JavaScript programmers either avoid or know nothing about. As part of the 'You Don’t Know JS' series, this compact guide focuses on new features available in ECMAScript 6 (ES6), the latest version of the standard upon which JavaScript is built. No matter how much experience you have with JavaScript, odds are you don’t fully understand the language.

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