Run results for: Array split vs string substring

Run details:

User agent: Mozilla/5.0 (X11; CrOS x86_64 13310.93.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.133 Safari/537.36

Browser: Chrome 85

Operating system: Chrome OS 13310.93.0

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Array.split	2148578.0 Ops/sec
Substring	2397184.0 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("."));