React was yelling at me because this map didn't have a key. Since they're strings, lines of an error, I think they're fine as keys themselves - if the line is too long to be a good idea to use as a key, it probably is also too long to be displayed without truncation, so I'll assume both are going to be reasonable lengths.
React was yelling at me because this map didn't have a key. Since they're strings, lines of an error, I think they're fine as keys themselves - if the line is too long to be a good idea to use as a key, it probably is also too long to be displayed without truncation, so I'll assume both are going to be reasonable lengths.