javascript json stringify

Javascript JSON.stringify()

A common use of JSON is to exchange data to/from a web server.

When sending data to a web server, the data has to be a string.

You can convert any JavaScript datatype into a string with JSON.stringify().

Stringify a JavaScript Object

Imagine we have this object in JavaScript:

const obj = {name: "John", age: 30, city: "New York"};

Use the JavaScript function JSON.stringify() to convert it into a string.

const myJSON = JSON.stringify(obj);

The result will be a string following the JSON notation.

myJSON is now a string, and ready to be sent to a server: Continue reading Javascript JSON.stringify()

Javascript JSON – Introduction

JSON Example

This example is a JSON string:

'{"name":"John", "age":30, "car":null}'

It defines an object with 3 properties:

name
age
car

Each property has a value.

If you parse the JSON string with a JavaScript program, you can access the data as an object:

let personName = obj.name;
let personAge = obj.age;

Continue reading Javascript JSON – Introduction

JavaScript JSON

JSON is a format for storing and transporting data.

JSON is often used when data is sent from a server to a web page.

What is JSON?

JSON stands for JavaScript Object Notation
JSON is a lightweight data interchange format
JSON is language independent *
JSON is “self-describing” and easy to understand

* The JSON syntax is derived from JavaScript object notation syntax, but the JSON format is text only. Code for reading and generating JSON data can be written in any programming language. Continue reading JavaScript JSON