What is the difference between Go's recursion and iteration for implementing repeating logic in functions?

Recursion and iteration are two different approaches for implementing repeating logic in functions. In recursion, a function calls itself to solve a problem, while in iteration, a loop is used to repeatedly execute a block of code.

In Go, recursion is often used when dealing with problems that can be broken down into smaller, similar sub-problems, such as tree traversal or calculating factorials. Recursion can result in elegant and concise code, but it can also lead to stack overflow errors if not properly optimized.

On the other hand, iteration is often used when dealing with problems that involve iterating over a collection of data, such as searching or sorting algorithms. Iteration can be more efficient than recursion, as it avoids the overhead of function calls, but it can also result in longer and more complex code.

Both recursion and iteration have their strengths and weaknesses, and the choice between them often depends on the problem being solved and the constraints of the system in which the code is running.

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