Run results for: TextDecoder vs String.fromCharCode 2023

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 119

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

String.fromCharCode

1.6M/s

TextDecoder

559K/s

View exact numbers

Test name	Executions per second
✓ String.fromCharCode	1,604,435 Ops/sec
TextDecoder	559,403 Ops/sec

Script Preparation code:

var arr = new Uint8Array([84, 104, 105, 115, 32, 105, 115, 32, 97, 32, 85, 105, 110, 116,
    56, 65, 114, 114, 97, 121, 32, 99, 111, 110, 118, 101, 114, 116,
    101, 100, 32, 116, 111, 32, 97, 32, 115, 116, 114, 105, 110, 103
]);

Tests:

TextDecoder
new TextDecoder().decode(arr)
String.fromCharCode
String.fromCharCode.apply(null, arr)