Introduction to Functions
A function is a reusable block of code that performs a specific task in programming. Functions help organize code, making it easier to read and maintain. You create a function using a function definition, which includes the function's name and its code. To use a function, you make a function call by referencing its name in your program. This allows you to execute the code within the function whenever needed, promoting code reusability and efficiency.
Key Features:
- Definition: A function definition specifies the name and the code that will be executed.
- Calling: A function call executes the code defined in the function.
- Reusability: Functions can be called multiple times throughout a program, reducing redundancy.
Use Cases:
- Functions are commonly used in various programming languages to encapsulate logic, handle events, and perform calculations. They are essential for structuring code in a way that is both efficient and easy to understand.