Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    function generic(func, length){
        
        length = length || func.length;
        
        if(!length) return function(context){
            return func.call(context);
        }
            
        if(length < 0) return function(context){
            return func.apply(context, Array.prototype.slice.call(arguments, 1));
        }
        
        var i = 0, args = ['c'], sargs;
        
        for(; i < length; i++)
            args[i + 1] = 'a' + i;
        
        sargs = args.join(',');
        
        return Function('f', 'return function(' +  sargs + '){return f.call(' + sargs + ');}')(func);
    }
    
    var array = [1, 2, 3,1, 2, 3, 1, 2, 3, 1, 2, 3];
    
    var manualSlice = (function(){
        var nativeSlice = Array.prototype.slice;
        return function(object, a, b){
            return nativeSlice.call(object, a, b);
        }
    })();
    
    var slice = generic(Array.prototype.slice);
    
    
    var manualToString = (function(){
        var nativeToString = Object.prototype.toString;
        return function(object){
            return nativeToString.call(object);
        }
    })();
    
    var toString = generic(Object.prototype.toString);
    
    var ops = Object.prototype.toString;
  };
</script>

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manualSlice(array, 1);

slice(array, 1)

manualToString(array);

toString(array)

ops.call(array);

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by carrilho on 27th January 2013 and last updated on 28th January 2013
• Revision 2: published by carrilho on 28th January 2013

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