Rachit Joshi

Thanks for sharing this! I really like the practical rule of starting with const and switching to let only when reassignment is actually needed. The clarification about const not making objects or arrays immutable is especially useful, since that’s a common point of confusion for beginners. Great addition to the discussion!

Thanks for the thoughtful feedback! I completely agree, especially about the difference between w and a—it’s an easy detail for beginners to overlook. The point about processing large files line by line is also really important when working with real-world data. Glad you found the basics useful!