What's the replacement for mapTemplate

[j]

We were using mapTemplate and are now wondering how to get ready to migrate.

[ai]

Use something like this:

export function getPost (id) {
  if (!Template.cache[id]) {
      let store = atom()
      // add all callbacks
      Template.cache[id] = store
    }
    return Template.cache[id]
}

getPost.cache = {}

[j]

I sort of was figuring this. I didn't know if it was an anti pattern to create an "unknown" store on the fly. I've been tempted to instead create stores in a root context.

[ai]

It is OK to create stores in runtime.

We deprecated this helpers because it is easy to create it manually, but many new developers didn't understand how to use this helper.

[j]

I think the deprecation is fine IMO. To me it wasn't clear how it handled GC. If I can manually create stores, I can also sort of control my cleanup if needed.

I look forward to that context based version too.