Type Hints & Static Typing

Type Hints Basics

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Why Type Hints Exist

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IN THIS LESSON

YOU’RE LEARNING TO

↗annotate variables, function parameters, and return types with built-in and collection types

↗use Optional, Union, and the | shorthand to express nullable and multi-type values

↗define and use type aliases to make complex annotations readable

↗explain that type hints are not enforced at runtime and describe their actual purpose