Practical guide to JSON in web development, showing how JavaScript’s JSON.parse and JSON.stringify power safe, efficient deserialization/serialization for API calls, local storage, and inter-component data sharing; includes examples, pitfalls and validation tips, and a real-time profile workflow via Fetch and WebSockets/SSE, pointing to next steps and recommended books.
JSON (JavaScript Object Notation) is a lightweight, human-readable data interchange format used for storing and exchanging data between web servers, applications, and mobile apps. It's easy to read and write, platform-independent, and lightweight. JSON data types include strings, numbers, booleans, arrays, objects, and null values.
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