Run results for: split vs split vs split vs slice+indexOf

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36

Browser: Chrome 97

Operating system: Windows 7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
split1	1528839.2 Ops/sec
split10	1545839.6 Ops/sec
split0	2065645.8 Ops/sec
slice	2173036.0 Ops/sec

Script Preparation code:

var a = "slkfzesqdmkfbaczeiuncamzieurnamziuenramcizurnmcaizunermdzdezedzdjg qmzzpeoriucbyazpoeruycbaozecyrbazdzedksjdf zedazerbcazoyrbcoaizuyebrcoizedzmkqjsd fzedzedzedzedmkj";

Tests:

split1
a.split(" ", 1);
split10
a.split(" ", 1)[0];
split0
a.split(" ")[0];
slice
a.slice(0, a.indexOf(" "));

Run results for: split vs split vs split vs slice+indexOf

split1

split10

split0

slice