bind vs call or apply

bind-vs-call-or-apply.js

<script>
  Benchmark.prototype.setup = function() {
    var emptyFn = function(str, num) {}
    var str = 'test string'
    var num = 1
    
    var preBoundFn = emptyFn.bind(null, str, num)
  };

  Benchmark.prototype.teardown = function() {
    emptyFn = null
    str = null
    num = null
    preBoundFn = null
  };
</script>


Testing in Chrome 48.0.2564.116 on Windows XP
Test	Ops/sec

using bind once
var boundFn = emptyFn.bind(null, str, num)
boundFn()
152,644
±1.56%
100% slower

using call many times
emptyFn.call(null, str, num)
44,251,653
±2.11%
fastest

using apply many times
emptyFn.apply(null, [str, num])
5,948,666
±2.10%
87% slower

using preBoundFn
preBoundFn()
494,834
±1.71%
99% slower

A conclusion: Using #apply many times is an order of magnitude faster than using a pre-bound function many times -- so it seems in most use cases you will want to use #apply with the original function reference instead of creating a copy with #bind.