Info

Add SplitSlice2 method; spoiler, it's better.

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;
}

// splitSlice2 ftw
// https://github.com/naomik
function splitSlice2(str, len) {
  var _size = Math.ceil(str.length/len),
      _ret  = new Array(_size)
  ;
  
  for (var _i=0; _i<_size; _i++) {
    _ret[_i] = str.substring(_i*len, len);
  }

  return _ret;
}

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

</script>

Test runner

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Java applet disabled.

splitRegex(shortString, 2);

splitSlice(shortString, 2);

splitSlice2(shortString, 2);

splitRegex(longString, 2);

splitSlice(longString, 2);

splitSlice2(longString, 2);

splitRegex(longString, 100);

splitSlice(longString, 100);

splitSlice2(longString, 100);

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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 James Brumond on 25th May 2012
• Revision 2: published by Jon-Carlos Rivera on 26th May 2012
• Revision 3: published by gildas on 26th May 2012
• Revision 5: published on 27th May 2012 and last updated on 28th May 2012
• Revision 6: published on 28th May 2012
• Revision 7: published on 29th May 2012
• Revision 8: published by supsup on 29th May 2012
• Revision 9: published by Tgr on 6th June 2012
• Revision 10: published by Naomi Kyoto on 15th January 2013

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