destruct object use ... and get a list of data like { key: key, val: val }

iteratify.js

Object.prototype[Symbol.iterator] = function() {
  var self = this;
  var keys = Object.keys(this);
  var l = keys.length;
  var i = -1;
  return {
    next: function() {
      i++;
      var done = i >= l;
      var key = keys[i];
      return {
        value: done ? void 0 :  {
          key: key,
          val: self[key],
        },
        done: done 
      }
    }
  }
}

const obj = {
  a: 1,
  b: 'asd',
  c: function() {}
};

[...obj]
// you will get 
[
  {key: 'a', val: 1},
  {key: 'b', val: 'asd'},
  {key: 'c', val: function(){}}
]