Function bound

test/shims/phantomjs-shims.js:16–26

()

    var args = slice.call(arguments, 1);

    function bound() {
      var invokedAsConstructor = func.prototype && (this instanceof func);
      return func.apply(
        // Ignore the context parameter when invoking the bound function
        // as a constructor. Note that this includes not only constructor
        // invocations using the new keyword but also calls to base class
        // constructors such as BaseClass.call(this, ...) or super(...).
        !invokedAsConstructor && context || this,
        args.concat(slice.call(arguments))
      );
    }

    // The bound function must share the .prototype of the unbound
    // function so that any object created by one constructor will count