Run results for: Array.prototype.slice vs Array.from

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36

Browser: Chrome 74

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Array.prototype.slice	153938.8 Ops/sec
Array.from	112732.0 Ops/sec
Spread operator	162134.0 Ops/sec

HTML Preparation code:

<div class="a"></div>
<div class="a"></div>
<div class="a"></div>
<div class="a"></div>
<div class="a"></div>
<div class="a"></div>
<div class="a"></div>

Script Preparation code:

var a = document.getElementsByClassName('a');

Tests:

Array.prototype.slice
var other = Array.prototype.slice.call(a);
Array.from
var other = Array.from(a);
Spread operator
var other = [...a];

Run results for: Array.prototype.slice vs Array.from

Array.prototype.slice

Array.from

Spread operator