In some scenenarios, shared state between instances is desired. This can be archived by declaring the state outside the composable function.
import { ref } from 'vue'
// state declared here will be shared
const shareState = ref()
export function useComposable() {
// state declared here will NOT be shared
// and will be initialized every time
const localState = ref()
// Setters and getters for both
// can be defined here
return {
sharedState,
localState
}
}