logout(){
   appSettings.remove("token");
   appSettings.remove("id");
   appSettings.remove("username");
   //Redirect to login
   this.router.navigate(['/login']);
 }

export var testRemove = function () {
    // >> application-settings-removekey
    appSettings.remove("boolKey");
    // << application-settings-removekey
    TKUnit.assert(!appSettings.hasKey(boolKey), "Failed to remove key: " + boolKey);

    appSettings.remove(stringKey);
    TKUnit.assert(!appSettings.hasKey(stringKey), "Failed to remove key: " + stringKey);

    appSettings.remove(numberKey);
    TKUnit.assert(!appSettings.hasKey(numberKey), "Failed to remove key: " + numberKey);
};

 /**
  * @method remove
  * @param {string} key Storage key name
  * @return {void}
  * @description
  * This method will remove a localStorage item from the client.
  **/
 remove(key: string): any {
   if (AppSettings.hasKey(key)) {
     AppSettings.remove(key);
   } else {
     console.log('Trying to remove unexisting key: ', key);
   }
 }

 public launchExample() {
     if (hasKey("gotoexample")) {
         let value = getString("gotoexample");
         remove("gotoexample");
         this.router.navigate([value]);
     }
 }

    logout(): Promise<boolean> {
        console.log("LoginService.logout()");

        this.username = undefined;
        appSettings.remove(USER_KEY);
        return Promise.resolve(true);
    }

 private removePostKey(postKey:string) {
     applicationSettings.remove(postKey);
     let indexData:string = applicationSettings.getString(indexKey, "[]");
     let index:Array<string> = JSON.parse(indexData);
     let arrayIndex:number = index.indexOf(postKey, 0);
     if (arrayIndex > -1) {
         index.splice(arrayIndex, 1);
         console.log("Removed " + postKey + " from index position " + arrayIndex);
     }
     applicationSettings.setString(indexKey, JSON.stringify(index));
     console.log("Index length " + index.length);
 }

    public onClearSettings() {
        // >> app-settings-remove-key-code
        appSettings.remove("isTurnedOn");
        // << app-settings-remove-key-code

        // >> app-settings-remove-all-code
        appSettings.clear();
        // << app-settings-remove-all-code

        appSettings.setBoolean("isTurnedOn", false);
        this.isTurnedOn = appSettings.getBoolean("isTurnedOn", false);

        appSettings.setString("username", "Default name");
        this.username = appSettings.getString("username");

        appSettings.setNumber("locationX", 0.00);
        this.locationX = parseFloat(appSettings.getNumber("locationX").toFixed(2));

        this.someKey = appSettings.getString("noSuchKey", "No string value");
        this.noBoolKey = appSettings.hasKey("noBoolKey");
    }

 logout(){
   appSettings.remove("token");
 }