assert-function

assert-function

Assert that a value is a function

Install

$ npm install --save assert-function

Usage

var assertFunction = require('assert-function')

assertFunction(function () {})
//=> noop

assertFunction('foo')
// => TypeError: Expected function, got: foo

API

assertFunction(value) -> undefined

value

Required
Type: any

A value to check. A TypeError is throw for non-function values.

License

MIT Ben Drucker