15 - 切换器

[nsnans]

<script setup lang='ts'>
import { Ref, ref } from 'vue'
/**
 * Implement a composable function that toggles the state
 * Make the function work correctly
*/
function useToggle(i: boolean): [state: Ref, toggle: () => void] {
  const state = ref(i);
  const toggle = () => {
    state.value = !state.value;
  }
  return [state, toggle]
}

const [state, toggle] = useToggle(false)

</script>

<template>
  <p>State: {{ state ? 'ON' : 'OFF' }}</p>
  <p @click="toggle">
    Toggle state
  </p>
</template>