function calls: direct vs apply vs call vs bind

JavaScript performance comparison

Revision 86 of this test case created by

Preparation code 


      
      <script>

        Benchmark.prototype.setup = function() {

          
  function f() {
      return this;
  }
  var that = {
      f: f
  };
  var bound = f.bind(that);
  var that2 = Object.create(that);
  var that3 = {};
  var that4 = Object.create(that3);
  function A() {
      this.bar = "bar";
  }
  A.prototype.foo = function () {
      return this.bar;
  }
  function B () {
  }
  B.prototype = Object.create(A.prototype);
  B.prototype.constructor = B;
  var b = new B();
  var bound = A.prototype.foo.bind(b);

        
  };


      
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
call 
A.prototype.foo.call(b);
 pending…
bind 
var newBound = A.prototype.foo.bind(b);
newBound();
 pending…
bound 
bound();
 pending…
bind 
bound();
 pending…
prototype 
that2.f();
 pending…
direct (dynamic property) 
that3.f = f; that3.f();
 pending…
prototype (dynamic property) 
that3.f = f; that4.f();
 pending…

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