Is Rewriting the Same Function Several Times a Normal Part of Learning?

That’s completely normal. A useful habit is to write one sentence explaining what the function is supposed to do before you start coding. If you can’t describe it clearly, that usually means the problem itself still needs to be worked out. Doing this made my rewrites much less frequent.

It’s similar to learning a song: most people need to hear it several times before it sticks. Coming back to code later gives your brain another chance to process the idea, so the next rewrite may be less about failure and more about gaining a clearer understanding.

Try sketching the design before coding. A small diagram, a list of parameters and constraints, and comments describing what the function should do and why can keep you from repeatedly changing its overall structure. Once the design is settled, you can focus on improving the implementation instead of starting over each time.

A rough first version is often just a way to make the problem concrete. You might begin with a straightforward list of steps, get it working, and then improve the flow or performance. That kind of iteration is normal, especially when you’re still learning how to recognize better designs.

Rewriting can actually be part of the learning process rather than a sign that you’re behind. Each version helps you understand the algorithm and the problem space more deeply. Even experienced developers revisit code repeatedly, and sometimes they end up almost exactly where they started.