Typespecs
Get to know about typespecs and their significance in this lesson.
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What are TypeSpecs?
Functional languages depend heavily on types to determine how functions interact with one another. We can dramatically improve a function’s declaration of intent with typespecs.
A typespec annotates the expected input and outputs of a function.
Typespecs aren’t required, but they may be worthwhile because they require the developer to explicitly state what a function accepts and what it returns.
Since many bugs creep in at system boundaries such as function interfaces, declaring and enforcing types when you make our ...