Benchmark: Array.prototype.slice vs Array.from

HTML Preparation code:

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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];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.prototype.slice
Array.from
Spread operator

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 11 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/113.0

Browser/OS: Firefox 113 on Linux

View result in a separate tab

Test name	Executions per second
Array.prototype.slice	3892179.0 Ops/sec
Array.from	1516578.0 Ops/sec
Spread operator	1599742.0 Ops/sec

Array.prototype.slice vs Array.from (version: 0)

Comparing performance of: Array.prototype.slice vs Array.from vs Spread operator

Created: 5 years ago by: Guest

Jump to the latest result

Array.prototype.slice

Array.from

Spread operator

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A