Run results for: replaceWith vs replaceChild x1000 fix

Run details:

User agent: Mozilla/5.0 (Android 13; Mobile; rv:109.0) Gecko/119.0 Firefox/119.0

Browser: Firefox Mobile 119

Operating system: Android

Device Platform: Mobile

Date tested: 6 months ago

Test name	Executions per second
replaceWith	0.5 Ops/sec
replaceChild	0.5 Ops/sec

HTML Preparation code:

<html>

  
  
</html>

Script Preparation code:

parentBox = document.createElement('div');
document.body.appendChild(parentBox);

Tests:

replaceWith
var Iframe1 = []; var Video1 = []; for (var i = 0; i < 1000; i++) { Iframe1[i] = document.createElement('iframe'); parentBox.appendChild(Iframe1[i]); Video1[i] = document.createElement('video'); } for (var w = 999; w > -1; w--) { Iframe1[w].replaceWith(Video1[w]); }
replaceChild
var Iframe2 = []; var Video2 = []; for (var i = 0; i < 1000; i++) { Iframe2[i] = document.createElement('iframe'); parentBox.appendChild(Iframe2[i]); Video2[i] = document.createElement('video'); } for (var c = 999; c > -1; c--) { parentBox.replaceChild(Video2[c], Iframe2[c]); }