Value is async function

JavaScript, Type, Function · Oct 20, 2020

Checks if the given argument is an async function.

const isAsyncFunction = val =>
  Object.prototype.toString.call(val) === '[object AsyncFunction]';
isAsyncFunction(function() {}); // false
isAsyncFunction(async function() {}); // true

Written by Angelos Chalaris

I'm Angelos Chalaris, a JavaScript software engineer, based in Athens, Greece. The best snippets from my coding adventures are published here to help others learn to code.

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