Info

what is the best way to loop? Forwards? Backwards?

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 
<script>
  Benchmark.prototype.setup = function() {
    var list = ['radiohead', 'jeff', 'sigur ros', 'hammock', 'eluvium', 'mono', 'mogwai', 'olafur', 'hello destiny', 'cool things', 'between the buried and me', 'this will destroy you'];
    
    var doStuff = function(item) {
     var words = item.split(' ');
     return words;
    };
  };
</script>

Preparation code output

Test runner

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Java applet disabled.

$.each(list, function(idx, member) {
 doStuff(member);
});

for(i = 0, l = list.length; i < l; i++) {
 doStuff(list[i]);
}

var l = list.length;

for(i = l; i > 0; i--) {
    doStuff(list[i - 1]);
}

var l = list.length;
var r = list.reverse();

while(l--) {
 doStuff(r[l])
}

var l = list.length;

for(i = l; i-- > 0;) {
    doStuff(list[i]);
}

for(i = list.length; i--;){
doStuff(list[i]);
}

var l = list.length;
for(i = l; i--;){
doStuff(list[i]);
}

var l = list.length;
for(l; l--;){
doStuff(list[l]);
}

var l = list.length;
for(; l--;){
doStuff(list[l]);
}

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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 Jeff on 11th January 2012
• Revision 2: published on 19th January 2012
• Revision 3: published on 3rd February 2012
• Revision 4: published on 3rd February 2012
• Revision 5: published on 6th February 2012
• Revision 6: published on 21st March 2012
• Revision 7: published on 30th March 2012

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