js 上传图片之后如何删除input 中file的数据

Question

以创建元素的形式 创建的input标签，多次上传后input里面还会保留之前file的数据，应该如何操作删除，感谢各位

   uploadFile(el, value, field, indexId, level, type) {
      console.log(
        el,
        value,
        field,
        indexId,
        level,
        type,
        'uploadfile==========='
      )
      if (el && el.target && el.target.files && el.target.files.length > 0) {
        // this.files = el.target.files[0]
        this.files.push(el.target.files[0])
        console.log(this.files, 'el.target.files')
        const files = el.target.files[0]
        const isLt2M = files.size / 1024 / 1024 < 2
        const size = files.size / 1024 / 1024
        console.log(size)
        // 判断上传文件的大小
        if (!isLt2M) {
          this.$message.error('上传头像图片大小不能超过 2MB!')
        } else if (files.type.indexOf('image') === -1) {
          //如果不是图片格式
          // this.$dialog.toast({ mes: '请选择图片文件' });
          this.$message.error('请选择图片文件')
        } else {
          let that = this
          const reader = new FileReader() // 创建读取文件对象
          reader.readAsDataURL(el.target.files[0]) // 发起异步请求，读取文件
          // console.log(window.URL.createObjectURL(files),'files1111111111111111111111')
          // this.previewImage = window.URL.createObjectURL(files);
          reader.onload = function() {
            // 文件读取完成后
            // 读取完成后，将结果赋值给img的src
            that.apiImgLoopList.image = URL.createObjectURL(files)
            that.uploadType = '图片上传完成'
            console.log(document.getElementById('imgs').value, 'imgssssss')
            document.getElementById('imgs').value = ''
            if (that.files.length > 0) {
              if (that.typeStatus == '编辑') {
               
                let formData2 = new FormData()
                console.log(that.files,'that.filesthat.filesthat.filesthat.files')
                that.files.forEach((item) => {
                  formData2.append('url', item)
                })
                uploadImg(formData2, 'product').then((response) => {
                  if (response.status == 200) {
                    // this.$message.success('上传成功')
                    response.data.forEach((item, index) => {
                      that.uploadSpecArr[index].image = item.url
                    })
                  } else {
                    that.$message.error(response.message)
                  }
                  that.clickTag(
                    that.clickTagValue,
                    that.clickTagField,
                    that.clickTagIndexId,
                    that.clickTagLevel,
                    that.clickTagType,
                    that.uploadType
                  )
                })
              } else {
                // 数据传到后台
                let formData2 = new FormData()
                console.log(that.files,'只有一张的that.files')
                that.files.forEach((item) => {
                  formData2.append('url', item)
                })
                // formData2.append('image', this.files) // 可以传到后台的数据
                console.log(formData2, '2222222222222222222222222')
                uploadImg(formData2, 'product').then((response) => {
                  if (response.status == 200) {
                    // this.$message.success('上传成功')
                    // that.uploadSpecArr = response.data;
                    response.data.forEach((item, index) => {
                      that.uploadSpecArr[index].image = item.url
                    })
                  } else {
                    that.$message.error(response.message)
                  }
                  that.clickTag(
                    that.clickTagValue,
                    that.clickTagField,
                    that.clickTagIndexId,
                    that.clickTagLevel,
                    that.clickTagType,
                    that.uploadType
                  )
                })
              }
              // 数据传到后台
            }
            // document.getElementById('uploadImgs').value=''
            // that.clickTag(
            //   that.clickTagValue,
            //   that.clickTagField,
            //   that.clickTagIndexId,
            //   that.clickTagLevel,
            //   that.clickTagType,
            //   that.uploadType
            // )
          }
        }
      }
    },

Answer 1

el.value = ''

Answer 2

这不生效？

how-to-reset-input-type-file