Is it possible to add dynamically named properties to JavaScript object?

Question

In JavaScript, I\'ve created an object like so:

var data = {
    \'PropertyA\': 1,
    \'PropertyB\': 2,
    \'PropertyC\': 3
};

Is it poss

Answer 1

in addition to all the previous answers, and in case you're wondering how we're going to write dynamic property names in the Future using Computed Property Names ( ECMAScript 6 ), here's how:

var person = "John Doe";
var personId = "person_" + new Date().getTime();
var personIndex = {
    [ personId ]: person
//  ^ computed property name
};

personIndex[ personId ]; // "John Doe"

---

reference: Understanding ECMAScript 6 - Nickolas Zakas