Run results for: JSON.Stringify vs TextEncoder

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 138

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

JSON.Stringify

4.3M/s

EncodeInto

3.1M/s

Encode

452K/s

View exact numbers

Test name	Executions per second
✓ JSON.Stringify	4,296,638 Ops/sec
EncodeInto	3,070,068 Ops/sec
Encode	451,972 Ops/sec

Script Preparation code:

var i = 0;
var initialString = "This is the initial Test String";
var encoder = new TextEncoder();
var bufArray = new Uint8Array(initialString.length * 2)
var view = encoder.encode(initialString);
var initialObject = {someString: initialString};
var initialStringify = JSON.stringify(initialObject);

Tests:

Encode
var newString = "This is the updated Test String"; var view = encoder.encode(newString); if (i == 5000) console.log(view); i++;
EncodeInto
var newString = "This is the updated Test String"; var view = encoder.encodeInto(newString, bufArray); if (i == 5000) console.log(view); i++;
JSON.Stringify
var newString = "This is the updated Test String"; var object = {someString: newString}; var stringify = JSON.stringify(object); if (i == 5000) console.log(stringify); i++;