What is JSON for data exchange?

JSON is a lightweight data interchange format, known as JavaScript Object Notation, which represents data using key-value pairs in a simple text format. It can represent complex data structures like arrays, objects, strings, numbers, booleans, and null values.

Some advantages of JSON include:

1. Strong readability: JSON uses a simple text format to represent data, making it easy to read and understand.
2. The data format is simple: JSON’s data structure is relatively simple and easy to parse and generate.
3. Cross-platform and cross-language: JSON is a data format independent of language and platform, supported by most programming languages and platforms.
4. Data has a smaller volume: compared to other data exchange formats like XML and JSON, it has a smaller volume and faster transmission speed.
5. Easy to manage: The structure of JSON is similar to that of most programming languages, making it easy to handle and manipulate.

JSON is commonly used for data exchange between the front-end and back-end systems. The back-end server can send data in JSON format to the front-end, which can then parse the data and perform necessary operations. Similarly, the front-end can send user input data to the back-end server for processing in JSON format.