Run results for: Native JS: Array.join strings vs template literals vs String.concat vs string sum

Run details:

User agent: Mozilla/5.0 (Android 14; Mobile; rv:139.0) Gecko/139.0 Firefox/139.0

Browser: Firefox Mobile 139

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

string sum

32K/s

using template literals

31K/s

join

28K/s

concat

27K/s

View exact numbers

Script Preparation code:

var name = "name";
var id = "id";

Tests:

join
for (let i = 0; i < 80; ++i) { let result = [id, ':', i, ', ', name, ':', 'name', i].join(); }
concat
for (let i = 0; i < 80; ++i) { let result = "".concat(id, ':', i, ', ', name, ':', 'name', i); }
using template literals
for (let i = 0; i < 80; ++i) { let result = `${id}:${i}, ${name}:name${i}`; }
string sum
for (let i = 0; i < 80; ++i) { let result = id + ':' + i + ', ' + name + ':' + 'name' + i }