Run results for: substr vs substring vs slice

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0

Browser: Firefox 113

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var shortLength = 200;
var shortStr = new Array(300 + 1).join('s');
var longLength = 2000;
var longStr = new Array(3000 + 1).join('l');

Tests: