âa like a type signature but instead of tracking the type of data it tracks the lifetime. Usually it's good to be explicit with these when writing functions and data types that access references, otherwise you can run into confusing borrow checker error messages.
Discussion
I built a entire app in rust without needing to use (manually define) lifetimes. I suspect itâs one of rustâs parts that can be learned later (when you need to use it).
Donât worry. Youâll hate rust until you love it. Get ChatGPT to explain and illustrate by writing code snippets for you.