This article contrasts interfaces in TypeScript and Go, highlighting their fundamental differences. TypeScript employs a structurally typed system, where interfaces define the object's structure. In contrast, Go's interfaces are behavioral, using duck typing to allow structs to automatically satisfy interfaces without explicit implementation keywords. The article elaborates on how both languages handle method signatures and how this influences coding practices, demonstrating a key example with a Person object to illustrate each language's approach.
In TypeScript, interfaces are structurally typed, allowing you to define expected object shapes, whereas Go's interfaces leverage duck typing for behavior without explicit implementation.
Go's interfaces do not require an explicit keyword to implement, as structs automatically satisfy interfaces based on method signatures, permitting a more flexible design.
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