Function fixMethod

demo/js/main.js:477–486

(KEY)

    , proto = C && C.prototype
    , O     = {};
  var fixMethod = function(KEY){
    var fn = proto[KEY];
    require('./$.redef')(proto, KEY,
      KEY == 'delete' ? function(a){ return fn.call(this, a === 0 ? 0 : a); }
      : KEY == 'has' ? function has(a){ return fn.call(this, a === 0 ? 0 : a); }
      : KEY == 'get' ? function get(a){ return fn.call(this, a === 0 ? 0 : a); }
      : KEY == 'add' ? function add(a){ fn.call(this, a === 0 ? 0 : a); return this; }
      : function set(a, b){ fn.call(this, a === 0 ? 0 : a, b); return this; }
    );
  };
  if(typeof C != 'function' || !(IS_WEAK || proto.forEach && !require('./$.fails')(function(){
    new C().entries().next();
  }))){