is-fn

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

Usage

import isFunction from 'is-fn';

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

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

Related

• @sindresorhus/is - Type check values

Current Tags

• 3.0.0                                ...           latest (5 years ago)

3 Versions

• 3.0.0                                ...           5 years ago
• 2.0.0                                ...           7 years ago
• 1.0.0                                ...           11 years ago