23 - 自定义ref

[kid1110]

// 你的答案
<script setup>

import { customRef, watch } from "vue"

/**
 * Implement the function
*/
function useDebouncedRef(value, delay = 200) {
let timer = null
return customRef((track,trigger)=>{
  return {
    get(){
      track()
      return value
    },
    set(newValue){
      clearTimeout(timer)
      timer = setTimeout(()=>{
        value = newValue
        trigger()
      },delay)
    }
  
  }

})

}
const text = useDebouncedRef("hello")

/**
 * Make sure the callback only gets triggered once when entered multiple times in a certain timeout
*/
watch(text, (value) => {
  console.log(value)
})
</script>

<template>
  <input v-model="text" />
</template>