What does the expression “Fail Early” mean, and under what circumstances is this approach most useful, and when would you avoid the approach?
What does the expression Fail Early mean, and under what circumstances is this approach
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What does the expression “Fail Early” mean, and under what circumstances is this approach most useful, and when would you avoid the approach?
Essentially, fail fast (a.k.a. fail early) is to code your software such that, when there is a problem, the software fails as soon as and as visibly as possible, rather than trying to proceed in a possibly unstable state.
Also note the related concept of a fail-fast iterator – an iterator that, after certain modifications to the collection outside of the iterator, throws as soon as possible rather than proceed in a potentially unstable, or non-deterministic state.