Documentation unclear that weakMapMemoize is now the default memoizer

[audi2014]

as a developer i found mention about true behavior of memoization here https://reselect.js.org/introduction/v5-summary#breaking-changes
But i found this page only after playing with reselect in sandboxes. I was confused why this example may no effect: https://reselect.js.org/api/weakmapmemoize/#examples

llm generated:

Problem

The documentation doesn't clearly state that weakMapMemoize is now the default memoization function for createSelector (changed in commit 1ffd434).

This causes confusion because:

1. Examples show redundant configuration: The weakMapMemoize example and API documentation show:

const selectItemsByCategory = createSelector(
  [
    (state: RootState) => state.items,
    (state: RootState, category: string) => category
  ],
  (items, category) => items.filter(item => item.category === category),
  {
    memoize: weakMapMemoize,      // ← This is already the default
    argsMemoize: weakMapMemoize   // ← This is also already the default
  }
)

2. Developers may not realize the default changed: Those familiar with Reselect v4.x (where lruMemoize/defaultMemoize was default) may not realize the behavior has changed.

3. Migration implications unclear: The difference between lruMemoize (cache size: 1) and weakMapMemoize (unlimited cache) has significant performance and memory implications that aren't highlighted.

Suggested Improvements

1. Add a callout to the main documentation stating:

   ⚠️ Note: As of v5.0, weakMapMemoize is the default memoizer. Previous versions used lruMemoize with a cache size of 1.

2. Update examples to either:

   • Remove the explicit memoize/argsMemoize options (since they're redundant)
   • Add comments explaining that this is showing explicit configuration but isn't necessary:

   {
     // These are the defaults in v5.0+, shown here for clarity:
     memoize: weakMapMemoize,
     argsMemoize: weakMapMemoize
   }

Current Versions Affected

• v5.x documentation

[EskiMojo14]

sure, PRs are welcome