Run results for: index vs lastindexof

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.0.0; LDN-L21) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.115 Mobile Safari/537.36

Browser: Chrome Mobile 92

Operating system: Android 8.0.0

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
lastIndexOf	1549138.5 Ops/sec
indexOf	91490736.0 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");