How can I use TypeScript to ensure type safety in my projects?

How can I use TypeScript to ensure type safety in my projects?

You can use TypeScript by defining types for your variables, function parameters, and return values. This helps catch errors at compile time.

Can you give me an example of defining a type for a function?

Sure! Here's a simple example:

function add(a: number, b: number): number {
    return a + b;
}

This function takes two numbers and returns their sum, ensuring type safety.

What happens if I pass a string instead of a number?

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

Are there any tools to help with TypeScript type checking?

Yes! You can use the TypeScript compiler (tsc) and IDEs like Visual Studio Code that provide real-time type checking and suggestions.