node_modules/npm/node_modules/node-gyp/node_modules/path-array/node_modules/array-index/node_modules/es6-symbol/node_modules/es5-ext/function/is-function.js

'use strict';

var toString = Object.prototype.toString

  , id = toString.call(require('./noop'));

module.exports = function (f) {
	return (typeof f === "function") && (toString.call(f) === id);
};