Functions Basics

Learn parameter annotations, return types, optional/default params, and basic inference (including callbacks).

• Get Username Length (Explicit Return)Not started
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• Speed Calculator: Travel TimeNot started
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• Greeting with Optional TitleNot started
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• Pad Left with a Default WidthNot started
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• Apply Discount (Callback Inference)Not started
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• Announce Total: Log and ReturnNot started
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