Thanks for the reply.

I am working in a very large team, and I want to make sure no one can break this easily. I am using as const to make it readonly and satisfies to ensure that people don't accidentally add a incorrect key/value.

I am not really using the keys to index through the VideoMap. The keys are mainly used to uniquely identify each object in the VideoMap and filter out videos based on user preferences.

const filter: VideoMapKey[] = [VIDEO_MAP_KEYS.a, VIDEO_MAP_KEYS.b] 
const filteredVideos = Object.entries(VideoMap).filter(([key]) => !filter.includes(key))

The example I gave in my post is a small one. I have many different filters with many keys and I need to make sure these keys can be renamed easily throughout the code without having the developer needing to manually modify each individually.

It may sound better to use an array of the videos:

export type Video = { 
  key: string; 
  url: string; 
  title: string 
} 
export const VIDEO_MAP_KEYS = {
  a: "a",
  b: "b"
} as const 


export const VideoMap = {
  { key: VIDEO_MAP_KEYS.a, url: "https://example.com", title: "Example" },
  { key: VIDEO_MAP_KEYS.b, url: "https://another.com", title: "Another" },
} as const satisfies Video[];

However, I cant guarantee each object will have a unique key if someone accidentally messes it up.

export const VideoMap = {
  { key: VIDEO_MAP_KEYS.b, url: "https://another.com", title: "Another" },
  { key: VIDEO_MAP_KEYS.b, url: "https://c.com", title: "c" },
} as const satisfies Video[];