Run results for: JSON.stringify vs structuredClone, large array

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Linux

Device Platform: Desktop

Date tested: 7 months ago

structuredClone

16/s

JSON.stringify

7/s

View exact numbers

Test name	Executions per second
✓ structuredClone	16 Ops/sec
JSON.stringify	7 Ops/sec

Script Preparation code:

const largeArray = new Array(1e6).fill({ key: "value" });

var myCopy = null;

Tests: