Because the && operator performs short-circuit evaluation, your boolean expression will usually execute faster if the subexpression that is most likely False is on the left of the && operator.

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Quizplus · Accepted Answer

Since the && operator evaluates the first subexpression and if it's false, it doesn't evaluate the second subexpression. So if the subexpression that is more likely to be false is on the left, the second subexpression doesn't get evaluated, making the boolean expression faster to execute.

Because the && Operator Performs Short-Circuit Evaluation, Your Boolean Expression