new syntax ideal

(()=>{
  const o = {arr:[1,2,3], obj:{a:1,b:2,c:3}};
  const foo{arr:a,obj:o} = o;//making it easy to transfer data from one object to another
  console.log(foo);//foo = {a:[1,2,3],o:{a:1,b:2,c:3}}
  
  const bar = {baz:"foo",foo:"bar",bar:"baz"};
  const poo = Object.assgin({},bar);//this would be okey if it offer filter in it their argument
  const poo = Object.assgin({},bar,["baz","foo"]);
  poo//{baz:"foo",foo:"bar"}
  
})();