JavaScript JSON

What is JSON?

JSON (JavaScript Object Notation) is a data format. Used to exchange data between server and client.

┌─────────────────────┐
│   JavaScript Object │
│   { name: "John" }  │
└──────────┬──────────┘
            │
            │ JSON.stringify()
            │
┌───────────▼───────────┐
│   JSON String          │
│   '{"name":"John"}'    │
└───────────────────────┘

Converting to JSON

const user = { name: 'John', age: 25 };
const json = JSON.stringify(user);
console.log(json); // '{"name":"John","age":25}'

Parsing JSON

const json = '{"name":"John","age":25}';
const user = JSON.parse(json);
console.log(user.name); // "John"

Key Takeaway

JSON is data format. Use stringify() to convert object to JSON. Use parse() to convert JSON to object. Essential for API communication.