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Vue 3 Composition API

typescript
VueComposition API
          
      import { ref, computed } from 'vue'

      export function useCounter() {
        const count = ref(0)
        const doubleCount = computed(() => count.value * 2)
        
        return { count, doubleCount }
      }

Vue 3 Composition API

typescript
VueComposition API
          
      import { ref, computed } from 'vue'

      export function useCounter() {
        const count = ref(0)
        const doubleCount = computed(() => count.value * 2)
        
        return { count, doubleCount }
      }