is-function

grncdr
popular js
is-function JS library on GitHub is-function JS library on npm Download is-function JS library

is that thing a function? Use this module to find out

Version 1.0.2 License MIT Vulnerabilities 0
is-function has no homepage
is-function JS library on GitHub
is-function JS library on npm
Download is-function JS library
Keywords
polyfillis-functionie6

is-function

browser support

Is that thing a function? Use this module to find out.

API

module.exports = function isFunction(fn) -> Boolean

Return true if fn is a function, otherwise false.

Why not typeof fn === 'function'

Because certain old browsers misreport the type of RegExp objects as functions.

Acknowledgements

I stole this from https://github.com/ljharb/object-keys

License

MIT