JSFiddle - React, Tailwind, and code Playground

by Chuan Shao

JavaScript

var o = {x:1, y:2};
var a = Object.create(o);
a.z = 3;

for(p in a){
  console.log(p);
}//z x y
console.log(Object.keys(a));//["z"]
console.log(Object.getOwnPropertyNames(a));//["z"]