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JSON

Easy

In plain terms

JSON is a text format for data exchange. JSON.stringify() converts object to string. JSON.parse() converts string to object. Used for APIs and storage.

What you need to know

  • •stringify, parse
  • •No functions or undefined
  • •Common for APIs

Try it yourself

Copy the code below and run it in your browser console or a code editor:

const obj = { name: 'Alice', age: 25 };
const str = JSON.stringify(obj);  // '{"name":"Alice","age":25}'
const parsed = JSON.parse(str);   // { name: 'Alice', age: 25 }

Learn more

Dive deeper with these trusted resources:

MDNjavascript.infoTutorialsPointW3Schools