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Advanced Feature: Key Remapping in Mapped Types

Problem Statement: Consistently adapting your application's data structure to external naming requirements can be a repetitive task, prone to human errors.

Use Case: You're developing an application that interacts with multiple external systems, each with its unique naming convention for object keys. Instead of creating separate interfaces or renaming keys manually for each system, you aim for a dynamic, programmatic solution to adjust your data structures.

Eg.) Suppose you're integrating with an API that expects user properties to be prefixed with "usr_". Instead of manually rewriting or aliasing each property in your app, use key remapping to achieve this programmatically.

Snippet:

Explanation: PrefixKeys takes an object type T and a string K, then prefixes each key of T with K. Our PrefixedUser now has keys usr_name and usr_age, aligning with the API's naming convention, without manual renaming.

Real-World use-cases: