How knowing the way your programming language works can improve performance and avoid errors in certain cases.
Short-circuit evaluation is a feature in programming languages that allows an expression to be evaluated only until the point where its result can be determined without evaluating the entire expression. This can improve performance and avoid errors in certain cases.
In short-circuit evaluation, if the result of an expression can be determined based on the evaluation of a part of the expression, then the rest of the expression is not evaluated.
Short-circuit evaluation is a feature that is implemented in many programming languages, including: