👉 Offsider in programming languages, specifically in the context of recursion, refers to a function that is called recursively and never returns anything. This function does not have any return value but instead continues to call itself within its own function body until it reaches a base case or an infinite loop. Offsiders are often used in situations where the programmer wants to avoid unnecessary recursive calls or when they want to optimize the performance of the program by avoiding redundant computations.