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Structured Clone vs JSON Parse Stringify for Deep Copying State

12 mins read

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Structured Clone vs JSON Parse Stringify for Deep Copying State

April 11, 2026 Min-Ji Kim0Tagged Async Await, JavaScript Advanced, JavaScript Async, JavaScript Basics, JavaScript ES2024, JavaScript ES6, JavaScript Fetch, JavaScript Tutorial, Modern JavaScript, Promises JavaScript

Every React or Vue developer who has ever written setState(JSON.parse(JSON.stringify(prev))) has quietly shipped a bug waiting to happen.