Short variable names like `i` are often the most appropriate. It's a thoroughly understood idiom and to use anything else just because you don't like single let

Short variable names like `i` are often the most appropriate. It's a thoroughly understood idiom and to use anything else just because you don't like single letters is just stupid. It's fine if you want to use a language that let's you easily avoid using indexes at all, though. But only if it's idiomatic in that language.