Run results for: String concatenation vs array join Chrome 3

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser: Chrome 127

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Array join

19K/s

Array join (w/ push)

19K/s

String concatentation

12K/s

View exact numbers

Script Preparation code:

var str = "";
var i;
var sArr = [];

Tests:

String concatentation
str = ''; for (i = 1000; i > 0; i--) { str += "String concatenation. " + i; }
Array join
sArr = []; for (i = 1000; i > 0; i--) { sArr[i] = "String concatenation. " + i; } str = sArr.join("");
Array join (w/ push)
sArr = []; for (i = 1000; i > 0; i--) { sArr.push("String concatenation. " + i); } str = sArr.join("");