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Clever, but wrong. It would permit lat as 90.50 or long as -180.3; parsing should consider the whole number with optional fractional part, but that doesnt seem to be tested in validation.
niubi
Nice. Didn't know that was possible. But keep in mind I believe this causes the regex to be compiled on each function call. It would be better to have the regex compiled in a var outside of the function.
Hahahahahaha