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Deepmap support #44

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Lifo123 wants to merge 1 commit into from
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Deepmap support #44

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14 changes: 10 additions & 4 deletions index.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,3 @@
import { listenKeys } from 'nanostores'
import { useCallback, useRef, useSyncExternalStore } from 'react'

let emit = (snapshotRef, onChange) => value => {
Expand All @@ -18,9 +17,16 @@ export function useStore(store, { keys, deps = [store, keys], ssr } = {}) {
let subscribe = useCallback(onChange => {
emit(snapshotRef, onChange)(store.value)

return keys?.length > 0
? listenKeys(store, keys, emit(snapshotRef, onChange))
: store.listen(emit(snapshotRef, onChange))
if (keys && keys.length > 0) {

@ai ai Jun 24, 2026

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Maybe we should add it to listenKeys instead to make it possible to use across all tools?

@ai ai Jun 24, 2026

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If you like this idea, please, send PR to nanostores/nanostores (we are going to have a minor release in a few days).

@Lifo123 Lifo123 Jun 24, 2026

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Yeah, i send a new PR in nanostores/nanostores#408. check it out

let keysSet = new Set(keys).add(undefined)
return store.listen((value, _, changed) => {
let baseKey = changed ? changed.split(/\.|\[/)[0] : undefined
if (keysSet.has(changed) || keysSet.has(baseKey)) {
emit(snapshotRef, onChange)(value)
}
})
}
return store.listen(emit(snapshotRef, onChange))
}, deps)

let get = () => snapshotRef.current
Expand Down
4 changes: 2 additions & 2 deletions package.json
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "@nanostores/react",
"version": "1.1.0",
"version": "1.1.1",
"description": "React integration for Nano Stores, a tiny state manager with many atomic tree-shakable stores",
"keywords": [
"react",
Expand Down Expand Up @@ -65,7 +65,7 @@
"index.js": "{ useStore }",
"nanostores": "{ map, computed }"
},
"limit": "958 B"
"limit": "977 B"
}
],
"engines": {
Expand Down