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x is used for map, filter, etc. a and b are used for sorts, comparisons and merges. y might be used if I'm doing multiple lambda expressions (but that means I'm in a bad place already). I have no idea why, but these are firm rules in my brain.
I've gotten used to using the singular form as in...
records.filter((record) => ...)
Not saying this way is better but it works for me.
Yes! I love using x (and xs) for functions over whatever the thing is (or things are).
87 comments