Is it possible to destructure onto an existing object? (Javascript ES6)

Question

For example if I have two objects:

var foo = {
  x: \"bar\",
  y: \"baz\"
}

and

var oof = {}

and I want

Answer 1

It's totally possible. Just not in one statement.

var foo = {
    x: "bar",
    y: "baz"
};
var oof = {};
({x: oof.x, y: oof.y} = foo); // {x: "bar", y: "baz"}

(Do note the parenthesis around the statement.) But keep in mind legibility is more important than code-golfing :).

Source: http://exploringjs.com/es6/ch_destructuring.html#sec_assignment-targets