валидатор пользовательской проверки el-form

export default {
    data() {
        let validateImage = (rule, value, callback) => {
          if (this.addParams.distantViewPic1.length == 0) {
              callback(new Error("请上传设备损坏位置照片"));
          } else {
              callback();
          }
      };
   }
    return {
        rules: {
            distantViewPic1:[
                { required: true, validator: validateImage, trigger: "change" }
            ]
        }
    }
}

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Origin blog.csdn.net/m0_58293192/article/details/129545680