How does TypeScript handle enum performance?

How does TypeScript handle enum performance?

TypeScript enums are a way to define a set of named constants. They can be numeric or string-based. Performance-wise, enums are compiled to JavaScript objects, which means they have a small overhead compared to using plain constants.

Are there any performance differences between numeric and string enums?

Yes, numeric enums are generally more performant because they compile to a simpler structure. String enums, while more readable, can introduce additional overhead due to their string nature.

What about using enums in large applications?

In large applications, using enums can improve code readability and maintainability. However, it's essential to monitor performance, especially if enums are used extensively in critical paths.

Can you give an example of when to use enums?

Enums are great for defining a set of related constants, like status codes or user roles, where you want to ensure type safety and clarity in your code.