Add a new property to an object when creating a new object

AddAProperty.js

/*
arrOfObj = [{"name":"Ash"},{"name":"tim"},{"name":"david"}]
*/
var result = arrOfObj.map(function(el) {
  var o = Object.assign({}, el);
  o.isActive = true;
  return o;
})

console.log(result)
/*
prints:
[{"name":"Ash", "isActive": true},{"name":"tim", "isActive": true},{"name":"david", "isActive": true}]
*/