Run results for: RegEx.exec vs String.test

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

regex.test

11.3M/s

regex.exec

7.9M/s

View exact numbers

Test name	Executions per second
✓ regex.test	11,328,482 Ops/sec
regex.exec	7,858,966 Ops/sec

Script Preparation code:

var string = "test.user@example.com";
var regex = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;

Tests:

regex.exec
regex.exec(string) !== null;
regex.test
regex.test(string);