Run results for: RegEx.test vs. String.includes vs. String.match vs == .slice - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36

Browser: Chrome 116

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
RegEx.test	7815779.5 Ops/sec
String.includes	18611706.0 Ops/sec
String.match	4596457.5 Ops/sec
==	18955560.0 Ops/sec
=== known length	18597356.0 Ops/sec
startsWith	15876290.0 Ops/sec

Script Preparation code:

var string = "Hello world!";
var regex = /Hello/;

Tests:

RegEx.test
regex.test(string);
String.includes
string.includes("Hello");
String.match
string.match("Hello");
==
"Hello" == string.slice(0, "Hello".length);
=== known length
string.slice(0, 5) === "Hello"
startsWith
string.startsWith("Hello")