JSON
JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format that is easy for humans to read and write and for machines to parse and generate. It is based on a subset of the JavaScript programming language and is commonly used to transmit data between a server and web application, as well as for configuration files and APIs. JSON represents data as key-value pairs and arrays, making it highly versatile for structured data representation.
Developers should learn JSON because it is the de facto standard for data exchange in web development, APIs (e.g., RESTful services), and configuration files due to its simplicity and widespread support across programming languages. It is essential for working with modern web technologies, mobile apps, and cloud services, where data serialization and interoperability are critical. Use cases include API responses, storing application settings, and exchanging data between frontend and backend systems.