this post was submitted on 28 Jun 2023
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Which order do you prefer for null testing ternary expressions? (self.java)
submitted 1 year ago by JackbyDev to c/java
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Which do you prefer of these two? The goal is the same. If bar is null then make foo null and avoid the exception. In other languages there is the ?. operator to help with this.

foo = bar == null ? null : bar.baz();
foo = bar != null ? bar.baz() : null;

I ask because I feel like the "English" of the first example is easier to read and has less negations so it is more straightforward, but the second one has the meat of the expression (bar.baz()) more prominently.

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[–] austin 3 points 1 year ago

I think generally it’s preferably to work in the affirmative, i.e. bar == null? but I’ll admit I don’t stick to this 100% of the time and generally just use whatever feels better / more appropriate in the moment