Benchmark: Intl.Collator.compare vs String.prototype.localeCompare (v8 ASCII fast path)

Script Preparation code:

function randomStrings(chars, length, stringLength) {
	const randomChar = () => chars[Math.floor(Math.random() * chars.length)];
	const randomString = () => Array.from({length: stringLength}, randomChar).join("");
	return Array.from({length}, randomString);
}

var asciiStrings = randomStrings(["a", "b", "c"], 50000, 9);
var unicodeStrings = randomStrings(["간", "쟁", "뜻"], 50000, 9);

Tests:

Intl.Collator.compare (ASCII-only strings)
const collator = new Intl.Collator(); asciiStrings.sort(collator.compare);
String.prototype.localeCompare (ASCII-only strings)
asciiStrings.sort((a, b) => a.localeCompare(b));
Intl.Collator.compare
const collator = new Intl.Collator(); unicodeStrings.sort(collator.compare);
String.prototype.localeCompare
unicodeStrings.sort((a, b) => a.localeCompare(b));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Intl.Collator.compare (ASCII-only strings)
String.prototype.localeCompare (ASCII-only strings)
Intl.Collator.compare
String.prototype.localeCompare

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 9 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36

Browser/OS: Chrome 147 on Windows

View result in a separate tab

Test name	Executions per second
Intl.Collator.compare (ASCII-only strings)	256.6 Ops/sec
String.prototype.localeCompare (ASCII-only strings)	586.7 Ops/sec
Intl.Collator.compare	193.2 Ops/sec
String.prototype.localeCompare	252.7 Ops/sec

Related benchmarks:

Intl.Collator.compare vs String.prototype.localeCompare (v8 ASCII fast path) (version: 0)

Comparing performance of: Intl.Collator.compare (ASCII-only strings) vs String.prototype.localeCompare (ASCII-only strings) vs Intl.Collator.compare vs String.prototype.localeCompare

Created: 2 years ago by: Guest

Jump to the latest result

Intl.Collator.compare (ASCII-only strings)

String.prototype.localeCompare (ASCII-only strings)

Intl.Collator.compare

String.prototype.localeCompare

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A