Javascript 未捕获类型错误：无法读取属性'；公司名称'；未定义的

我试图解决此错误，但由于我是angularjs的新手，因此我陷入困境，需要帮助解决此问题：

TypeError: Cannot read property 'companyName' of undefined
     at Scope.$scope.companyModify (app.js:8501)
     at $parseFunctionCall (base.js:21610)
     at callback (base.js:30772)
     at Scope.$eval (base.js:23672)
     at Scope.$apply (base.js:23771)
     at HTMLButtonElement.<anonymous> (base.js:30777)
     at HTMLButtonElement.dispatch (base.js:4430)
     at HTMLButtonElement.elemData.handle (base.js:4116)

---

我认为您的对象“param”构造错误

你能试试吗

var param = {
    companyName: $scope.companyName,
    billColumn: $scope.billColumn,
    billTitle: $scope.billTitle,
    serviceTax: $scope.serviceTax,
    wishMessage: $scope.wishMessage,
    billTypeId: $scope.billTypeId
};

有“=”符号，应替换为“：”

其次，请确保所有变量，companyName，billColumn。。etc附加到模型，即调用方法之前的$scope-$scope.companyModify（）

---

让我知道这是否有帮助。

使用scope.companyName它看起来是注入了scope而不是$scope.companyName。值$scope.companyName来自何处？companyName来自Company表。

var param = {
    companyName: $scope.companyName,
    billColumn: $scope.billColumn,
    billTitle: $scope.billTitle,
    serviceTax: $scope.serviceTax,
    wishMessage: $scope.wishMessage,
    billTypeId: $scope.billTypeId
};