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

This is the most readable and shortest solution I could come up with:

let props = { 
  isValidDate: 'yes',
  badProp: 'no!',
};

let { isValidDate } = props;
let newProps = { isValidDate };

console.log(newProps);

It will output { isValidDate: 'yes' }

It would be nice to some day be able to say something like let newProps = ({ isValidDate } = props) but unfortunately it is not something ES6 supports.