It’s binary inversion. ~n = -(n + 1)
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Top comments (1)
There is a nice trick of turning
indexOfresults into booleans involving this method.Take the following code:
Can be turned into:
Since
-1will turn to 0 it will be resolved asfalsewhen doing a naive bool comparison, and other numbers (0 and up) will change into numbers which will be consideredtrue.I personally prefer to have things more readable, and also there are standard methods that aim to remove the need for these types of checked (
includesfor example), so I don't use it at all. But it's a nice thing to think about :)