Run results for: Split vs substring: parse string of many values

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0

Browser: Firefox 89

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Split	1775046.9 Ops/sec
Substring	848834.2 Ops/sec

Script Preparation code:

var s1 = "foo bar test hello goodbye george sally blue";
var s2 = "stuff shoes charge top bottom pink salt";

Tests:

Split
var n1 = s1.split(" "); var n2 = s2.split(" ");
Substring
function fastSplit(string) { let result = []; let startingIndex = 0; for (var i = 0; i < string.length; i++) { if (string[i] === " ") { result.push(string.substring(startingIndex, i).trim()); startingIndex = i; } } return result; } var n1 = fastSplit(s1); var n2 = fastSplit(s2);