Run results for: index vs lastindexof

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 Edg/123.0.0.0

Browser: Chrome 123

Operating system: Windows

Device Platform: Desktop

Date tested: 7 months ago

Test name	Executions per second
lastIndexOf	22020800.0 Ops/sec
indexOf	101252656.0 Ops/sec

Tests:

lastIndexOf
var str = "Hello world, welcome to the universe."; var n = str.lastIndexOf("welcome");
indexOf
var str = "Hello world, welcome to the universe."; var n = str.indexOf("welcome");