搜索输入框 延迟搜索

延迟搜索，当input输入框值变化时，延迟1秒发送请求，若期间再次输入，则清空定时器

let btnsleep;
OnSearch(e) {
    clearTimeout(this.btnsleep);

    this.btnsleep = setTimeout(() => {
      this.inspectionService.getDocNoList(e).then(
        (data: any) => {
          this.DocNoList = data;
        });
    }, 1000);
  }