asciidisco.com/build/node_modules/is-function-x/README.md

is-function-x

Determine whether a given value is a function object.

Version: 3.3.0
Author: Xotic750 Xotic750@gmail.com
License: MIT
Copyright: Xotic750

module.exports(value, [allowClass]) ⇒ boolean ⏏

Checks if value is classified as a Function object.

Kind: Exported function
Returns: boolean - Returns true if value is correctly classified, else false.

Param	Type	Default	Description
value	*		The value to check.
[allowClass]	boolean	false	Whether to filter ES6 classes.

Example

var isFunction = require('is-function-x');

isFunction(); // false
isFunction(Number.MIN_VALUE); // false
isFunction('abc'); // false
isFunction(true); // false
isFunction({ name: 'abc' }); // false
isFunction(function () {}); // true
isFunction(new Function ()); // true
isFunction(function* test1() {}); // true
isFunction(function test2(a, b) {}); // true
isFunction(async function test3() {}); // true
isFunction(class Test {}); // false
isFunction(class Test {}, true); // true
isFunction((x, y) => {return this;}); // true