Functions, Arrow Functions, and Callbacks

Functions are instrumental in JavaScript programming and an essential concept for React development. Functions are blocks of reusable code that perform a specific task. They're necessary to write more concise and readable code, especially when creating React components.

JavaScript offers three primary types of functions:

• Regular functions

• Arrow functions

• Callback (async) functions

Regular functions (standard functions)

In JavaScript, regular functions are declared using the function keyword. They can take parameters, perform operations, and return values.