关于vue项目中搜索节流的实现

<template>
 <input type="text"   v-model.trim="sse">
</template>
<script>
const delay = (function () {
  let timer = 0
  return function (callback, ms) {
    clearTimeout(timer)
    timer = setTimeout(callback, ms)
  }
})()
export default {
  name :  'search',
  watch : {
    sse () {
   delay(() => {
        this.search()
      }, 500)
},
methods ：{
  search () {
        this.$axios
          .get([url])
          .then(response => {
            // success
          })
          .catch(error => {
            // error
            alert('失败！')
          })
}
}
}
}
</script>