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Run results for:
Spread vs JSON.parse(JSON.stringify())
Benchmarks spread vs JSON.parse(JSON.stringify())
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<iframe src="https://measurethat.net/Embed?id=596829" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Browser:
Chrome 132
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Spread
6.4M/s
JSON Parse & Stringify
256K/s
View exact numbers
Test name
Executions per second
✓
Spread
6,352,603 Ops/sec
JSON Parse & Stringify
256,058 Ops/sec
Tests:
Spread
var theJSON = { "squadName": "Super hero squad", "homeTown": "Metro City", "formed": 2016, "secretBase": "Super tower", "active": true, "members": [ { "name": "Molecule Man", "age": 29, "secretIdentity": "Dan Jukes", "powers": [ "Radiation resistance", "Turning tiny", "Radiation blast" ] }, { "name": "Madame Uppercut", "age": 39, "secretIdentity": "Jane Wilson", "powers": [ "Million tonne punch", "Damage resistance", "Superhuman reflexes" ] }, { "name": "Eternal Flame", "age": 1000000, "secretIdentity": "Unknown", "powers": [ "Immortality", "Heat Immunity", "Inferno", "Teleportation", "Interdimensional travel" ] } ] } var result = {...theJSON}
JSON Parse & Stringify
var theJSON = { "squadName": "Super hero squad", "homeTown": "Metro City", "formed": 2016, "secretBase": "Super tower", "active": true, "members": [ { "name": "Molecule Man", "age": 29, "secretIdentity": "Dan Jukes", "powers": [ "Radiation resistance", "Turning tiny", "Radiation blast" ] }, { "name": "Madame Uppercut", "age": 39, "secretIdentity": "Jane Wilson", "powers": [ "Million tonne punch", "Damage resistance", "Superhuman reflexes" ] }, { "name": "Eternal Flame", "age": 1000000, "secretIdentity": "Unknown", "powers": [ "Immortality", "Heat Immunity", "Inferno", "Teleportation", "Interdimensional travel" ] } ] } var result = JSON.parse(JSON.stringify(theJSON))