Mr0grog

Object.defineProperties = function(O, Properties) {
  // 1. If Type(O) is not Object throw a TypeError exception.
  if (typeof(O) !== "object" || O == null) {
    throw TypeError("Object.defineProperties called on non-object");
  }
  
  // 2. Let props be ToObject(Properties)
  var props = Object(Properties); // not *exactly* the same, but similar enough
  
  // 3. Let names be an internal list containing the names of each enumerable own property of props.