Async functionsThe async and await keywords allow you to use the asynchronous, promise-based behavior of a function without using promise chains.javascriptJavaScriptwidely2017-04-052019-10-05https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-async-function-definitionsasync-functionshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/awaitjavascript.builtins.AsyncFunctionjavascript.builtins.AsyncFunction.AsyncFunctionjavascript.operators.async_functionjavascript.operators.awaitjavascript.statements.async_functionhttps://nowyoucanuse.com/features--async-await.html