Benchmark: Event listener performance_

HTML Preparation code:


<div id=''></div>

Script Preparation code:

var audio = document.createElement("audio");

function logHello(e) { 
  e.count = (e.count|| 0) + 1; 
  console.log("hello");
}

Tests:

Add 1 event listener and trigger event
for (var i = 0; i < 1; i++) audio.addEventListener("ratechange", logHello.bind({})); audio.playbackRate = 2; // trigger ratechange event
Add 100 event listeners and trigger event
for (var i = 0; i < 100; i++) audio.addEventListener("ratechange", logHello.bind({})); audio.playbackRate = 2; // trigger ratechange event
Add 1000 event listeners and trigger event
for (var i = 0; i < 1000; i++) audio.addEventListener("ratechange", logHello.bind({})); audio.playbackRate = 2; // trigger ratechange event

Rendered benchmark preparation results:

Previous results

Test case name	Result
Add 1 event listener and trigger event
Add 100 event listeners and trigger event
Add 1000 event listeners and trigger event

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Event listener performance_ (version: 0)