Run results for: JSON.parse() vs. eval() large object

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:143.0) Gecko/20100101 Firefox/143.0

Browser: Firefox 143

Operating system: Linux

Device Platform: Desktop

Date tested: 11 months ago

Test name	Executions per second
✓ JSON.parse()	256,595 Ops/sec
eval()	32,260 Ops/sec

Script Preparation code:

var jsonString = '{"user":{"id":1,"name":{"first":"太郎","last":"山田"},"age":30,"email":"taro.yamada@example.com","address":{"street":"1-2-3","city":"東京","prefecture":"東京都","postalCode":"100-0001"},"phoneNumbers":[{"type":"mobile","number":"090-1234-5678"},{"type":"home","number":"03-1234-5678"}],"hobbies":[{"name":"サッカー","level":"中級"},{"name":"読書","genres":["フィクション","ノンフィクション","ミステリー"]},{"name":"料理","skills":{"cuisine":["和食","イタリアン"],"level":"上級"}}],"preferences":{"language":"日本語","notifications":{"email":true,"sms":false,"push":true}}}}'