Run results for: check regex vs split

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 117

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
regex	1111469.8 Ops/sec
Other	713608.9 Ops/sec

Script Preparation code:

var tester = /^[-!#$%&'*+\/0-9=?A-Z^_a-z`{|}~](\.?[-!#$%&'*+\/0-9=?A-Z^_a-z`{|}~])*@[a-zA-Z0-9](-*\.?[a-zA-Z0-9])*\.[a-zA-Z](-?[a-zA-Z0-9])+$/;
var email = "valid@gmail.com"
var email2 = "invalidgmail.com"

Tests:

regex
tester.test("invalidemail")
Other
var emailParts = email.split('@'); var account = emailParts[0]; var address = emailParts[1]; if (account.length > 64) return false; else if (address.length > 255) return false; var domainParts = address.split('.'); if (domainParts.some(function (part) { return part.length > 63; })) return false;

Run results for: check regex vs split

regex

Other