Run results for: string concatenation vs string array

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.167 YaBrowser/22.7.3.822 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 22

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
String concatenation	399.8 Ops/sec
String array	734.8 Ops/sec

Script Preparation code:

var str = '';
var strArr = new Array(10000);

Tests:

String concatenation
for (let i = 0; i < 10000; i++) { str += 'new string'; }
String array
for (let i = 0; i < 10000; i++) { strArr[i] = 'new string'; } strArr.join();

Run results for: string concatenation vs string array

String concatenation

String array