In TypeScript, the "in" operator narrowing is a type narrowing technique that allows the type checker to refine the types of union types based on the presence of a specific property or key in an object.
TypeScript compiler infer a more specific type based on the usage of
equality checks (e.g., ===, !==, ==, !=).
TypeScript generics are a powerful feature that allows you to create reusable and flexible components, functions, and classes by defining them with a type variable.
They are a powerful and expressive feature borrowed from the decorator pattern in other languages, such as Python.
All Properties of An Object Enumerable in JavaScript including Number Properties and here is why.
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The satisfies operator aims to give the ability to the developers to assign the most specific types of expressions for inference.