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https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
Testing selector matching using (moz|webkit)MatchesSelector
(implemented "matchesSelector
" in Firefox and webkit browsers)
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div class="level1">
<div class="level2">
<div class="level3">
<div class="level4">
<div class="level5" id="foo">
</div>
<div class="level5">
</div>
<div class="level5">
</div>
</div>
</div>
</div>
</div>
<script>
(function(docEl, $) {
var matches = docEl.mozMatchesSelector || docEl.webkitMatchesSelector;
$.fn.matching = matches ?
function(selector) {
return matches.call(this[0], selector);
} : $.fn.is;
})(document.documentElement, jQuery);
var matchesSelector = function(node, selector) {
var nodeList = node.parentNode.querySelectorAll(selector),
length = nodeList.length,
i = 0;
while (i < length) {
if (nodeList[i] == node) return true;
++i;
}
return false;
};
var $element = jQuery(jQuery('.level1 .level2 .level3 .level4 .level5')[0]); // Get first result and add wrap with jQuery object
var domEl = $element[0];
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
Using $.fn.is |
| ready |
Using mozMatchesSelector or webkitMatchesSelector |
| ready |
Native Implementation using querySelectorAll on Parent Node |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.