Run results for: Array split vs string substring

Run details:

User agent: Mozilla/5.0 (Android 14; Mobile; rv:128.0) Gecko/128.0 Firefox/128.0

Browser: Firefox Mobile 128

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Array.split	6576029.0 Ops/sec
Substring	976603520.0 Ops/sec

Script Preparation code:

var s1 = "foo.bar";
var s2 = "foo";

Tests:

Array.split
var n1 = s1.split(".")[0]; var n2 = s2.split(".")[0];
Substring
var n1 = s1.substring(0, s1.indexOf(".")); var n2 = s2.substring(0, s2.indexOf("."));