Run results for: if slice vs substr vs substring (with no end index)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36

Browser: Chrome 71

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Script Preparation code:

var example = 'Hay amk ne spoonmuş';
var a = example.indexOf('spoon');

Tests: