So strange that no PB book provides this pretty basic information...

Use short-circuit evaluation to improve performance of your program. Short-circuit ... also the regular one (also called "eager" or "long-circuit") - when the second part of the Boolean expression ...

... in advance, store its result in a Boolean variable with a high-quality, descriptive name, and use that variable in the if statement. If the evaluation of a logical expression is longer than a few lines of code, then refactor it to a brand new Boolean function, and call it from within the ...

... programming language doesn't support the short-circuit evaluation of Boolean expressions - the evaluation is always "long-circuit" :cry: . Let's suppose we have Boolean functions ...