What are the best practices for using variadic functions in programming?

What are variadic functions and when should I use them?

Variadic functions are functions that can accept a variable number of arguments. You should use them when the number of inputs is not fixed, like in logging or mathematical operations.

What are some best practices for implementing variadic functions?

Some best practices include: validating input types, using default values, and documenting the expected arguments clearly.

Can you give an example of a variadic function in JavaScript?

Sure! Here's a simple example: function sum(...numbers) { return numbers.reduce((acc, num) => acc + num, 0); } This function sums any number of arguments.

Are there any performance concerns with using variadic functions?

Yes, variadic functions can introduce overhead due to argument handling. It's best to use them judiciously in performance-critical code.