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

Run details:

User agent: Mozilla/5.0 (Android 4.2.2; Tablet; rv:68.0) Gecko/68.0 Firefox/68.0

Browser: Android 4

Operating system: Android 4.2.2

Device Platform: Tablet

Date tested: 2 years ago

Test name	Executions per second
split1	419981.3 Ops/sec
split10	468060.0 Ops/sec
split0	235142.4 Ops/sec
slice	1836541.9 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