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

Run details:

User agent: Mozilla/5.0 (Linux; Android 13; SM-G986N Build/TP1A.220624.014;) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/130.0.6723.58 Mobile Safari/537.36 Zalo android/12100758 ZaloTheme/light ZaloLanguage/vi

Browser: Chrome Mobile 130

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

substr

13.5M/s

substring

13.3M/s

slice

13.1M/s

split

8.2M/s

View exact numbers

Test name	Executions per second
✓ substr	13,480,261 Ops/sec
substring	13,282,506 Ops/sec
slice	13,100,109 Ops/sec
split	8,164,516 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];