Functions in JavaScript are like building blocks that allow developers to create reusable blocks of code.
There are two ways to create functions:
Using the function keyword or
Using the arrow functions (() => {}).
Functions can take input values, which we call parameters, and perform specific actions or calculations based on these inputs. After performing the desired actions, functions can also return a value using the return keyword. This returned value can then be used or stored for further use in the program. With functions, developers can organize their code into logical modules, making it easier to understand and maintain. They are a fundamental concept in JavaScript programming and play a crucial role in creating dynamic and interactive web applications