Run results for: index vs lastindexof

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.85 Safari/537.36 Vivaldi/2.2.1388.34

Browser: Chrome 71

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
lastIndexOf	15534071.0 Ops/sec
indexOf	670384832.0 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");