What is TypeScript type checking?

What is TypeScript type checking?

TypeScript type checking is a feature that allows you to verify the types of variables and function parameters at compile time.

How does it differ from JavaScript?

Unlike JavaScript, which is dynamically typed, TypeScript is statically typed, meaning types are checked at compile time.

Can you give me an example of type checking in TypeScript?

Sure! For example, you can define a function like this: function greet(name: string) { return Hello, ${name}; } This ensures that the name parameter is always a string.

What happens if I pass a number instead?

If you pass a number, TypeScript will throw a compile-time error, preventing the code from running until the issue is fixed.