Run results for: Array split vs string substring

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:66.0) Gecko/20100101 Firefox/66.0 iphon

Browser: Firefox 66

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Array.split	4373149.0 Ops/sec
Substring	12022300.0 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("."));