What are the best practices for using enums in TypeScript in 2023?

What are the best practices for using enums in TypeScript in 2023?

In 2023, some best practices for using enums in TypeScript include using string enums for better readability, avoiding numeric enums when possible, and ensuring enums are well-documented.

Can you explain why string enums are preferred over numeric enums?

String enums provide clearer and more descriptive values, making the code easier to understand and debug, especially in large applications.

Are there any performance considerations when using enums?

Generally, enums have minimal performance impact, but using string enums can lead to slightly larger bundle sizes. It's essential to balance readability and performance.

What about using enums with TypeScript's union types?

Using enums with union types can enhance type safety and flexibility. It allows you to define a set of allowed values while still leveraging the benefits of enums.

Can you give an example of a well-documented enum?

Sure! Here's an example:

/**
 * Enum representing the status of a task.
 */
export enum TaskStatus {
    /** The task is pending completion. */
    Pending = 'PENDING',
    /** The task has been completed. */
    Completed = 'COMPLETED',
    /** The task has been canceled. */
    Canceled = 'CANCELED'
}