Benchmark: EventListener in parent vs EventListener in childs

HTML Preparation code:

<div id="parent">
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div> 
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div> 
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
    <div>a</div> <div>b</div> <div>c</div> <div>e</div> <div>f</div> <div>g</div> <div>h</div> <div>i</div> <div>j</div> <div>k</div>
</div>

Script Preparation code:

var parent = document.getElementById("parent");
var text ="";

Tests:

Parent listener
parent.addEventListener("click", (e)=>{ text = e.target.textContent; });
Child listeners
for(var children of parent.children){ children.addEventListener("click",(e)=>{ text = e.target.textContent; }) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Parent listener
Child listeners

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/109.0

Browser/OS: Firefox 109 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Parent listener	2401.5 Ops/sec
Child listeners	45.9 Ops/sec

EventListener in parent vs EventListener in childs (version: 0)

Comparing performance of: Parent listener vs Child listeners

Created: 2 years ago by: Guest

Jump to the latest result

Parent listener

Child listeners

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A