Run results for: Array split vs string substring

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Substring

30.7M/s

Array.split

12.1M/s

View exact numbers

Test name	Executions per second
✓ Substring	30,661,840 Ops/sec
Array.split	12,141,664 Ops/sec

Script Preparation code:

var s1 = "foo.bar";
var s2 = "foo";

Tests:

Array.split
var n1 = s1.split(".")[0]; var n2 = s2.split(".")[0];
Substring
var n1 = s1.substring(0, s1.indexOf(".")); var n2 = s2.substring(0, s2.indexOf("."));