Async functions

Async functions make it possible to treat functions returning Promise objects as if they were synchronous.

async attribute for external scripts

The boolean async attribute on script elements allows the external JavaScript file to run when it's available, without delaying page load first.

htmlscriptelement api: async

svgscriptelement api: async

javascript built-in: array: fromasync

javascript built-in: asyncfunction

javascript built-in: asyncfunction: `asyncfunction()` constructor

javascript built-in: asyncgenerator

javascript built-in: asyncgeneratorfunction

javascript built-in: asyncgeneratorfunction: `asyncgeneratorfunction()` constructor

javascript built-in: asyncgenerator: next

javascript built-in: asyncgenerator: return

javascript built-in: asyncgenerator: throw

javascript built-in: asynciterator

javascript built-in: asynciterator: @@asynciterator

javascript built-in: atomics: waitasync

javascript built-in: symbol: asynciterator

javascript function: method definitions: async generator methods

javascript function: method definitions: async methods

javascript operator: `async function` expression

javascript operator: `async function*` expression

javascript statement: `async function*` statement

svg element: script: async

ecmascript 2018 (es9)