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C replace multiple if statements6/12/2023 To eliminate a nested conditional statement, you can use a guard clause.Ī guard clause is a condition within the if statement that must be met for code execution to continue. How would you refactor nested if statements? Let’s see an example of how to use a guard clause to eliminate nested ifs. The best way is to eliminate this kind of conditional logic. This is a code smell, meaning the code is not in the optimal state. The nested conditional like this leaves more questions than answers. How many execution paths the code contains? And what if we want to change it? Are we going to have to hunt down every instance of this pattern in the codebase to make sure we didn’t miss anything? It’s hard to see what we are dealing with here. You see it everywhere, especially in legacy code: to get to our desired output, we need to evaluate multiple things, and we aren’t sure exactly how many.
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