JSON, which stands for JavaScript Object Notation, is a popular file format used for data interchange. It is a lightweight and easy-to-read format that is used to transmit data between a server and a web application. JSON has become the preferred choice for exchanging data between systems due to its simplicity and flexibility.

One of the key features of JSON is its human-readable format, which makes it easy for both humans and machines to understand. JSON files are composed of key-value pairs and arrays, making it a versatile and efficient way of organizing and transmitting data. The simplicity of its structure allows for easy manipulation and parsing, making it a popular choice for developers.

JSON files are commonly used for a variety of purposes, such as storing configuration settings, transmitting data between a server and a client, or exchanging information between different systems. Its simplicity and flexibility make it a great choice for a wide range of applications.

When working with JSON files, it's important to understand its syntax and structure. JSON files are composed of objects, which are enclosed in curly braces, and arrays, which are enclosed in square brackets. Each key-value pair is separated by a colon, and multiple key-value pairs are separated by commas. This structure allows for easy organization and retrieval of data.

In conclusion, JSON is a versatile and efficient file format that is used for data interchange. Its simplicity and human-readable format make it a popular choice for developers. Understanding the basics of JSON and its syntax will allow you to effectively work with JSON files and utilize its benefits in your projects.