ES6 Structuring Assignment?

Question

The new destructuring assignment features of ES6 are fairly well known now (live copy on Babel\'s REPL); in the case of variables that already exist:

Answer 1

Some experimental stuff, building on top of your answer.

If you wanted to get a little cheeky you could emulate the assignment portion of it with a setter. Definitely not practical, but it's a fun way to see what the behaviour might look like on the outside, if maybe you could empty assign o[] =. (Babel)

let a = '1', b = '2';
let o = {z: '26'};

Object.defineProperty(Object.prototype, '', {
  set: function (o) {
    Object.assign(this, o);
  }, configurable: true
});

o[''] = {a, b};

Same issues you face with your answer, actually more, but some food for thought.