What are some examples of arguments and parameters in programming?

What are some examples of arguments and parameters in programming?

In programming, arguments are the values you pass to a function, while parameters are the variables in the function definition that receive those values. For example, in Python, you might define a function like this: def add(a, b): return a + b. Here, a and b are parameters, and when you call add(2, 3), the values 2 and 3 are the arguments.

Can you give me a specific example in JavaScript?

Sure! In JavaScript, you might have a function like this: function multiply(x, y) { return x * y; }. Here, x and y are parameters. When you call multiply(4, 5), 4 and 5 are the arguments.

What about default parameters?

Default parameters allow you to set default values for parameters if no arguments are provided. For example: function greet(name = 'Guest') { return 'Hello, ' + name; }. If you call greet(), it will return 'Hello, Guest'.

How do variable-length arguments work?

In JavaScript, you can use the rest parameter syntax to handle variable-length arguments. For example: function sum(...numbers) { return numbers.reduce((acc, num) => acc + num, 0); }. This allows you to pass any number of arguments to the sum function.