JSFiddle - React, Tailwind, and code Playground

by steveukx

JavaScript

Array.prototype.plop = function() {};
Array.prototype.wibble = function() {};

Object.getKeys = function(obj) {
  var rtn = [];
    for( var el in obj ) {
        rtn[rtn.length] = el;
    }
    return rtn;
};

alert(Object.getKeys({}));