What are function parameters in programming?

What are function parameters in programming?

Function parameters are variables listed as part of a function's definition. They allow you to pass data into functions.

Can you give me an example of a function with parameters?

Sure! Here's a simple example in Python:

def greet(name):
    return f'Hello, {name}!'

In this case, name is a parameter.

What happens if I don't provide a parameter when calling the function?

If you don't provide a parameter, it will result in an error unless the parameter has a default value.

How do default parameters work?

Default parameters allow you to set a default value for a parameter. For example:

def greet(name='Guest'):
    return f'Hello, {name}!'

If you call greet() without an argument, it will use 'Guest'.