Run results for: String concatenation-2021-2

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; Pixel 5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.210 Mobile Safari/537.36

Browser: Chrome Mobile 90

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
Plus operator	187677.6 Ops/sec
using concat function	208817.1 Ops/sec
using template literals	148885.7 Ops/sec
Plus equal operator	196154.8 Ops/sec

Script Preparation code:

var stringArray = [
  "vsYjQhWW81jNQ7u",
"9KQsDJfCnT4JJrf",
"YMzWT1Uco2T9AB5",
"0zIgDBXDMZdieUl",
"4hItfhLfRD2hLIr",
"XYw1Yn8SgaBzinu",
"XTTahL0gbmFMdGn",
"P37CWiCns1khHEC"
];

var result = "";

Tests:

Plus operator
for (var i = 0; i < stringArray.length; i++) { result = result + stringArray[i]; } result=result+".";
using concat function
for (var i = 0; i < stringArray.length; i++) { result = result.concat(stringArray[i]); } result = result.concat(".");
using template literals
for (var i = 0; i < stringArray.length; i++) { result = `${result}${stringArray[i]}`; } result = `${result}.`;
Plus equal operator
for (var i = 0; i < stringArray.length; i++) { result += stringArray[i]; } result+=".";

Run results for: String concatenation-2021-2

Plus operator

using concat function

using template literals

Plus equal operator