What are TypeScript annotations and how do they work?
An example of an AI chatbot conversation about TypeScript annotations and their usage.
What are TypeScript annotations and how do they work?
TypeScript annotations are a way to specify the types of variables, function parameters, and return values. They help catch errors at compile time.
Can you give me an example of a TypeScript annotation?
Sure! For instance, you can annotate a variable like this: let age: number = 30; This indicates that age should always be a number.
What happens if I assign a different type to an annotated variable?
If you try to assign a different type, TypeScript will throw a compile-time error, helping you catch potential bugs early.
Are there any best practices for using annotations in TypeScript?
Yes! It's best to use annotations for public APIs, function parameters, and return types to improve code readability and maintainability.
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