ES2015 Destructuring Assignment Example -- Basic object destructuring assignment with default value

objects-basic-defaults.js

/* ES5 equivalent (ignoring assignment of intended falsy values)
  var obj = {};
  var one = obj.one;
  var two = obj.two || 2;
 */
let obj = {};
let {one, two = 2} = obj;
console.log({one, two}); // output: { one: undefined, two: 2 }