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- README: add a visible ## Security section (official sources, vuln reporting via SECURITY.md, GateGuard/IOC/AgentShield guardrails, security guide); make stats line a plain paragraph to clear MD028 - eslint: empty catch comment in run-with-flags.js; drop unneeded escape in github-coordination/parsing.js; remove unused execFileSync import in its test (#2236 follow-ups) - markdownlint: wrap bare URLs in rules/vue/*.md (#2250 follow-up) npm run lint green; full suite 2836/2836.
57 lines
2.4 KiB
Markdown
57 lines
2.4 KiB
Markdown
---
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paths:
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- "**/*.vue"
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---
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# Vue Patterns
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> This file extends [common/patterns.md](../common/patterns.md) with Vue specific content.
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## Composables
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- The composable (`useXxx`) is the reusable-logic unit. In Feature-Sliced Design it lives in the slice `model` segment.
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- Accept `MaybeRefOrGetter<T>` inputs and normalize with `toValue`, so callers can pass a ref, a getter, or a raw value.
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- Return `toRefs(reactive(...))` so consumers can destructure without losing reactivity.
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- A composable that uses lifecycle hooks or `provide` / `inject` must be called inside a component `setup`, not lazily or conditionally.
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## Props, Emits, v-model
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- Type-based `defineProps<Props>()` and tuple-form `defineEmits<{ change: [id: number] }>()`.
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- `defineModel<T>('name', { default })` for two-way binding. It compiles to a prop plus an `update:*` emit.
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## Provide / Inject
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- Use `provide` / `inject` for tree-scoped data without prop drilling.
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- Type-safe collision-free keys: `const key = Symbol() as InjectionKey<T>`.
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- The provider owns mutations. Expose a `readonly` ref plus an explicit updater function, never a raw mutable ref.
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## Pinia (FSD model segment)
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- Prefer setup stores: `ref` is state, `computed` is getters, `function` is actions.
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- Setup stores do not get `$reset` for free. Define your own.
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- Use `storeToRefs` for state and getters. Destructure actions directly off the store.
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- Never persist raw auth tokens to `localStorage`.
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## vue-router
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- Lazy-load route components with dynamic `import()`.
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- A global `beforeEach` auth gate keyed on `meta.requiresAuth`. Guards return `false` (cancel), a route location (redirect), or `undefined` / `true` (continue).
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- Watch `() => route.params.id`, not the whole `route` object.
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## vue-query (server cache)
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- `@tanstack/vue-query` owns server-cache state. Pinia owns client state.
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- Put request functions plus `queryOptions` factories in the FSD `api` segment.
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- Critical: put the ref or computed ITSELF in the query key, never `.value`. Passing `.value` freezes the key and kills reactive refetch.
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```ts
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useQuery({ queryKey: ['auction', id], queryFn: () => fetchAuction(toValue(id)) })
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// after a mutation
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queryClient.invalidateQueries({ queryKey: ['auction', id] })
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```
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## Reference
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- ECC skills: `frontend-patterns`, `vite-patterns`.
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- Docs: <https://pinia.vuejs.org/> · <https://router.vuejs.org/> · <https://tanstack.com/query/latest/docs/framework/vue/overview> · <https://vuejs.org/guide/reusability/composables.html>
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