What is JSON and its common operations?

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What is JSON?

JSON is a text-based format that represents data as key-value pairs or arrays. It is a lightweight alternative to XML and is more human-readable than other formats like CSV (Comma Separated Values). JSON data is typically represented as a collection of name-value pairs, where each pair consists of a string key and a value.

Example of a Simple JSON Object

{
  "name": "John Doe",
  "age": 30,
  " occupation": "Software Developer"
}

Parsing JSON Strings

We can parse a JSON string into a JavaScript object using JSON.parse().

const jsonString = '{"name":"John Doe","age":30}';
const person = JSON.parse(jsonString);
console.log(person);
// Output: { name: "John Doe", age: 30 }

Stringifying JSON Objects

We can convert a JavaScript object to a JSON string using JSON.stringify().

const person = {
  name: 'Jane Doe',
  age: 25
};
const jsonString = JSON.stringify(person);
console.log(jsonString); // '{"name":"Jane Doe","age":25}'