Function.bind performance

Benchmark created by vamp on

Preparation HTML

<script>
var slice = Array.prototype.slice,
    push = Array.prototype.push;

Function.prototype['bindFirst'] = function(context){
    var fn = this, args = slice.call(arguments,1);
    return function(){
        return fn.apply(context, args.concat(slice.call(arguments)));
    };
};

Function.prototype['secondBind'] = function(context){
    var fn = this, linked = [];
    push.apply(linked, arguments);
    linked.shift();

    return function(){
       var args = [];
       push.apply(args, linked);
       push.apply(args, arguments);
       return fn.apply(context, args);
    };
};

Function.prototype['bindThird'] = function (object) {
    var originalFunction = this, args = slice.call(arguments), object = args.shift();
    return function () {
       return originalFunction.apply(object, args.concat(slice.call(arguments)));
    }; 
};

// test function and context
  var testcxt = {},
      testarg1 = 'test',
      testarg2 = {},
      testarg3 = 1,
      testarg4 = {},
      testfunc = function() {
    if (this !== testcxt || arguments.length != 4) throw new Error('failed');
      };

  
  var first = testfunc.bindFirst(testcxt, testarg1, testarg2);
  var second = testfunc.secondBind(testcxt, testarg1, testarg2);
  var third = testfunc.bindThird(testcxt, testarg1, testarg2);
  var native = testfunc.bind ? testfunc.bind(testcxt, testarg1, testarg2) : testfunc.secondBind(testcxt, testarg1, testarg2);


</script>

Test runner

Ready to run.

Testing in
TestOps/sec
First
first(testarg3, testarg4)
ready
Second
second(testarg3, testarg4)
ready
Third
third(testarg3, testarg4)
ready
Native
native(testarg3, testarg4)
ready

Revisions

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