— Iterators are a great example of type safety in practice, because they standardize a data structure's serialization, meaning the code which prefers to rely on iterators is "more" type safe
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People at my workplace say that adding something i.e type safety to current workflow and adopting to that will slow it down
— And in a way it is thinking over something that i rather not have without considering type safety so there is some cost of time
— Now how much it would be and the will benifits outweigh the cost that i don't know yet
— Where is the time cost?
— Type safety in JS can be incrementally added
— So it's optional everywhere
— Additional step of thinking and adding type safety where its good to have but not needed
— Yeah that's true
— Which step?
— I don't see it
— Well i don't yet do type safety