is

Check if value is an async function.

Similar: is, isGenerator.

function is(v)
// v: a value

const xasyncfn = require('extra-async-function');


xasyncfn.is(async () => 0);
// → true

xasyncfn.is(() => 0);
// → false

References

• Learn You a Haskell for Great Good!: Higher order functions by Miran Lipovaca
• How to know if a function is async?
• JavaScript Detect Async Function by David Walsh
• is-async-function package by Jordan Harband
• is-callback-function package by Charlike Mike Reagent