浅谈用Webpack路径压缩图片上传尺寸获取的问题

picUpload(e) {
   let image = new Image();
   const reader = new FileReader();
   const $img = e.target.files[0];
   const formData = new FormData();
   formData.append('pic', $img);
   reader.onload = (e) => {
    const src = e.target.result;
    image.src = src;
    if (image.width !== 750 && image.height !== 1334) {
     this.showModal('', '图片尺寸有误,请重新上传', 'warning', true, false);
    } else {
     if ($img.size > (300  1024)) {
      this.showModal('', '图片大小不能超过300k', 'warning', true, false);
      this.setParams('pic', '');
     } else {
      this.$set(this, 'IMGNAME', $img.name);
      this.setParams('pic', formData);
     }
    }
   }
   if (e.target.files && e.target.files[0]) {
    reader.readAsDataURL(e.target.files[0]);
   }
  },