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A "more precise" description of interfaces. #1075

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A "more precise" description of interfaces. #1075

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2 changes: 1 addition & 1 deletion pages/Interfaces.md
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One of TypeScript's core principles is that type checking focuses on the *shape* that values have.
This is sometimes called "duck typing" or "structural subtyping".
In TypeScript, interfaces fill the role of naming these types, and are a powerful way of defining contracts within your code as well as contracts with code outside of your project.
In TypeScript, interfaces fill the role of naming these shapes, and are a powerful way of defining contracts within your code as well as contracts with code outside of your project.

# Our First Interface

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