# JSON- JavaScript Object Notation

JSON stands for JavaScript Object Notation

JSON is a lightweight format for storing and transporting data

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

JSON is "self-describing" and easy to understand

### This example is a JSON string

```json
{"name":"john", "age":30,"car":null}
```
It defines an Object with 3 properties 
- Name
- Age
- Car

### Key and Value
The two primary parts that make up a JSON are key and values:-

**Key:** A key is always a string enclosed in quotation marks. 

**Value:** A value can be a string number, boolean expression, array or object. 


```json
{"name":"john"}
```

The key is "name" and the value is "John"


## JSON Methods

### JSON.parse( )
A common use of JSON is to exchange data to/from a web server. 
When recieving data from a web server, the data is always a string

```json
"{"name":"john", "age":30,"car":null}"
```
We use the JSON.parse() to convert strings into Javascript Objects

```js
const obj=JSON.parse("{"name":"john", "age":30,"car":null}");
```

### JSON.stringify( )
When sending data to a web server, the data has to be a string.

Convert a Javascript object into a string with JSON.stringify( ).

Imagine we have this object in Javascript

```js
const obj={"name":"john", "age":30,"car":null};
const myJSON=JSON.stringify(obj);
```

Credits: 
coding_.master on IG:- For his inspirational post on Javascript and a schematics on how to write this article and also  [w3Schools](https://www.w3schools.com/whatis/whatis_json.asp)