Run results for: Array.from vs Spread with Node List

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Spread

2.6M/s

Array.from

1.4M/s

Spread on NodeList

35K/s

Array.from on NodeList

34K/s

View exact numbers

Test name	Executions per second
✓ Spread	2,561,809 Ops/sec
Array.from	1,393,477 Ops/sec
Spread on NodeList	35,032 Ops/sec
Array.from on NodeList	34,344 Ops/sec

HTML Preparation code:

<ul>
</ul>

Script Preparation code:

var fooSet = new Set();
var ul = document.querySelector('ul');
for(var i=0;i<100;i++) {
  fooSet.add(i);
  ul.appendChild(document.createElement('li'));
}

var listItems = document.querySelectorAll('li');

Tests:

Array.from
var other = Array.from(fooSet);
Spread
var other = [...fooSet];
Array.from on NodeList
var other = Array.from(listItems);
Spread on NodeList
var other = [...listItems];