Vue報錯：Method "msg" has already been defined as a data property./this.msg is not a function……

Vue 報錯信息：

[Vue warn]: Method "msg" has already been defined as a data property.
[Vue warn]: Error in mounted hook: "TypeError: this.msg is not a function"
TypeError: this.msg is not a function ……

原因：

在 Vue 中：computed(計算屬性)；data；props 都會被掛在在 vm 實例上，因此不能同名。

也不能與函數名同名。

鍵名優先級：props > data > methods