call-function/lib/index.js

Invoke function if is it callable and return result otherwise undefined

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
var call = exports.call = function call() {
  for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
    args[_key] = arguments[_key];
  }

  var fn = args.shift();
  if (typeof fn === 'function') {
    return fn.apply(undefined, args);
  }
};