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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=602662" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Non-Iterator
13K/s
Iterator
11K/s
View exact numbers
Test name
Executions per second
✓
Non-Iterator
13,352 Ops/sec
Iterator
10,599 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='' 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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 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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);