Run results for: Performance Test: substring vs substr vs slice vs split

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.6.1

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
slice	4686647.0 Ops/sec
substring	4352205.0 Ops/sec
substr	4373627.0 Ops/sec
split	2482628.0 Ops/sec

Script Preparation code:

var string = "I am the god of hellfire, and I bring you..."

Tests:

slice
var substring = string.slice(17, 25);
substring
var substring = string.substring(17, 25);
substr
var substring = string.substr(17, 25);
split
var substring = string.split(',')[1];