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Run results for:
querySelectorAll, iterated map or array map
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=602663" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0
Browser:
Firefox 137
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Non-Iterator
32K/s
Iterator
20K/s
View exact numbers
Test name
Executions per second
✓
Non-Iterator
32,098 Ops/sec
Iterator
19,932 Ops/sec
HTML Preparation code:
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src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script><canvas id='' width='' height=''></canvas> <a id='' href='#' /> <script src=''></script> <a id='' href='#' /> <canvas id='' width='' height=''></canvas> <div id=''></div> <canvas id='' width='' height=''></canvas> <script src=''></script>
Tests:
Iterator
[...document.querySelectorAll("*").values().map(e => e.attributes)];
Non-Iterator
[...document.querySelectorAll("*")].map(e => e.attributes);