A utility to check if a JavaScript function is pure.

is-function function

判断当前值是否为函数

Checks whether a value is a function or not.

A lightweight JavaScript utility library with common functions

Check whether a value is a function

function type checker

A type guard for callable JavaScript values.

A utility to determine if a value is a function

Is it one?

Determine if a value is a function

is's a helper

Is value a function check

An expressive type testing library

Check does the given Javascript Object is a function.

判断当前值是否为函数

Powerful package to check for variable types, values and others.

A TypeScript type guard that validates if the given value is a function

Check does the given Javascript Object is a function.

Determine if a value is a function