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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) GSA/211.1.447770393 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.4

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
slice	14044070.0 Ops/sec
substring	12183940.0 Ops/sec
substr	12609260.0 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);