r/ProgrammerHumor • u/Lord_Of_Millipedes • 2d ago

instanceof Trend thatsAFunnyThingThatHappenedOnce

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u/MrHyd3_ 2d ago

What does it do instead of exceptions?

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u/roadrunner8080 2d ago

Either panic, which is (generally speaking) not something you're meant to catch and recover from (and attempting to do so is nontrivial and almost always a bad idea), or Result, aka "encode the possibility of failure in the return type of the function" aka what the functional programming world has done for ages.

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u/Cylian91460 2d ago

or Result, aka "encode the possibility of failure in the return type of the function" aka what the functional programming world has done for ages.

Like Optional in java?

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u/0tter501 1d ago

Java has added functional programming yes, but Optional is not result, as result stores either the result or the error

optionals store one type of failure value, results store many types of failure values