Unused object properties make code harder to maintain and use. Clients that are unaware that a property is unused may perform nontrivial computations to compute a value that is ultimately unused.

Remove the unused property.

In this code, the function f initializes a property prop_a with a call to the function expensiveComputation, but later on this property is never read. Removing prop would improve code quality and performance.

  • Coding Horror: Code Smells.
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