Run results for: index vs lastindexof

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2600.0 Safari/537.36 AppEngine-Google; (+http://code.google.com/appengine; appid: s~billingses-hrd)

Browser: Chrome 49

Operating system: Windows 7

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
lastIndexOf	7375715.5 Ops/sec
indexOf	5631824.5 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");

Run results for: index vs lastindexof

lastIndexOf

indexOf