Run results for: fors vs for..of vs NodeList.forEach vs Array.forEach vs jQuery.each

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36

Browser: Chrome 68

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
for	357.7 Ops/sec
for..of	226.3 Ops/sec
NodeList.forEach	290.7 Ops/sec
Array.forEach	240.4 Ops/sec
jQuery.each	396.0 Ops/sec
for 2	367.8 Ops/sec

HTML Preparation code:

<content id="demo">Hello World!</content>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Script Preparation code:

let content = '';
for (let i=0; i<10000; i+=1) {
    content += '<div class="component" data-component="component' + i + '">Content ' + i + '</div>';
}
document.getElementById("demo").innerHTML = content;

Tests:

for
let components = []; let values = []; const queryComponentsFor = document.querySelectorAll('[data-component]'); for (let i = 0; i < queryComponentsFor.length; ++i) { values.push(queryComponentsFor[i].getAttribute('data-component')); components.push(queryComponentsFor[i]); }
for..of
let components = []; let values = []; for (let el of document.querySelectorAll('[data-component]')) { values.push(el.getAttribute('data-component')); components.push(el); }
NodeList.forEach
let components = []; let values = []; document.querySelectorAll('[data-component]').forEach(el => { values.push(el.getAttribute('data-component')); components.push(el); });
Array.forEach
let components = []; let values = []; [...document.querySelectorAll('[data-component]')].forEach(el => { values.push(el.getAttribute('data-component')); components.push(el); });
jQuery.each
let components = []; let values = []; $('[data-component]').each((i, el) => { values.push(el.getAttribute('data-component')); components.push(el); });
for 2
let components = []; let values = []; const queryComponentsFor = document.querySelectorAll('[data-component]'); for (let i = 0, e; e = queryComponentsFor[i]; ++i) { values.push(queryComponentsFor[i].getAttribute('data-component')); components.push(queryComponentsFor[i]); }

Run results for: fors vs for..of vs NodeList.forEach vs Array.forEach vs jQuery.each

for

for..of

NodeList.forEach

Array.forEach

jQuery.each

for 2