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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser: Firefox 129

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
RegEx.test	36107548.0 Ops/sec
String.includes	1767422720.0 Ops/sec
String.match	13541992.0 Ops/sec
==	1766788480.0 Ops/sec
=== known length	1756921216.0 Ops/sec
startsWith	1856660224.0 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")