Question

我在vue.js中设置了一个商店，可以访问compoenent的计算部分中的状态参数：

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    UIBarButtonItem.appearance()
        .setTitleTextAttributes([NSFontAttributeName : UIUtils.getFont(14)],
                                for: UIControlState())
    FirebaseApp.configure()
//        setupUrbanAirship()
    return true
}
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    // Pass device token to auth
    Auth.auth().setAPNSToken(deviceToken, type: AuthAPNSTokenType.sandbox)
}

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {
    Auth.auth().canHandleNotification(userInfo)
}

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any],
                 fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    if Auth.auth().canHandleNotification(userInfo) {
        completionHandler(.noData)
        return
    }
}
fileprivate func setupUrbanAirship() {
    let filename = PropertyUtils.getUAPropertyFileName()
    let path = Bundle.main.path(forResource: filename, ofType: "plist")
    let config = UAConfig(contentsOfFile: path!)

    //config.automaticSetupEnabled = false
    UAirship.takeOff(config)
    let channelID = UAirship.push().channelID
    print("My Application Channel ID: \(channelID)")
    UAirship.push().userPushNotificationsEnabled = true
}

但是，当我尝试在同一组件的方法中访问商店时：

computed: {
    BASE_URL () {
    return this.$store.state.BASE_URL;  
  }

我在控制台收到此错误：

Uncaught（承诺）TypeError：无法读取属性'$ store'的未定义

我还尝试了methods: { register: function () { axios.post( this.BASE_URL + "/web/register", { username: this.username, password: this.password, email: this.email }).then(function(data){ this.$store.commit('saveToken', data.token); console.log('token is set to:', this.$store.state.token) }); } },而没有$store，但得到了同样的错误。

这里有什么问题？我该如何解决？

Answer 1

您正在使用javascript函数而不是箭头函数。试试这个它应该有效。

 methods: {
    register () {
          axios.post( this.BASE_URL + "/web/register", {
          username: this.username,
          password: this.password,
          email: this.email
        }).then( (data) => {
          this.$store.commit('saveToken', data.token);
          console.log('token is set to:',  this.$store.state.token)
        });
    }

Vuex：无法读取未定义的属性'$ store'

1 个答案: