is-fn

v3.0.0

Check if a value is a function

function fn check detect is test type

Check if a value is a function

In Node.js, just use typeof fn which works exactly the same. This module can be useful in the browser where typeof fn has a myriad of bugs.

Install

$ npm install is-fn

import isFunction from 'is-fn';

isFunction(() => {});
//=> true

isFunction('unicorn');
//=> false

npm i is-fn