How would you overload the [] operator in javascript

Question

I can't seem to find the way to overload the [] operator in javascript. Anyone out there know?

I was thinking on the lines of ...

MyClass.operator.lookup(index) {     return myArray[index]; } 

or am I not looking at the right things.

Answer 1

You can do this with ES6 Proxy (available in all modern browsers)

var handler = {     get: function(target, name) {         return "Hello, " + name;     } }; var proxy = new Proxy({}, handler);  console.log(proxy.world); // output: Hello, world 

Check details on MDN.