JavaScript Equivalent Of PHP __call

Question

In PHP you can detect when a method is called even when it doesn\'t exist using the \"magic\" __call function.

public function __call($methodNam         


        

Answer 1

It is possible using the ES6 Proxy API:

var myObj = {};
var myProxy = new Proxy(myObj, {
  get: function get(target, name) {
    return function wrapper() {
      var args = Array.prototype.slice.call(arguments);
      console.log(args[0]);
      return "returns: " + args[0];
    }
  }
});
console.log(myProxy.foo('bar'));

Browser compatibility is available on MDN. As of August 2017 all browsers (including Microsoft Edge) except Internet Explorer support it.

See this answer for a more complete look at Proxy.