String split by length

JavaScript performance comparison

Revision 9 of this test case created by Tgr

Preparation code

<script type="text/javascript">

function splitRegex(str, len) {
  var regex = new RegExp('.{1,' + len + '}', 'g');
  return str.match(regex);
}

function splitSlice(str, len) {
  var ret = [ ];
  for (var offset = 0, strLen = str.length; offset < strLen; offset += len) {
    ret.push(str.slice(offset, len + offset));
  }
  return ret;
}

var shortString  = 'abcdefg';
var longString   = (new Array(500)).join('qwertyuiopasdfghjklzxcvbnm');

</script>

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Testing in unknown unknown
Test Ops/sec
Regex w/ Short String
splitRegex(shortString, 2);
pending…
Regex w/ Long String
splitRegex(longString, 2);
pending…
Slice w/ Short String
splitSlice(shortString, 2);
pending…
Slice w/ Long String
splitSlice(longString, 2);
pending…
Regex w/ Long String, Large Chunks
splitRegex(longString, 100);
pending…
Slice w/ Long String, Large Chunks
splitSlice(longString, 100);
pending…

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