Question

我正在使用Angular JS构建一个应用程序，我想在localStorage中保留一些特定的数据，以便以后检索它。问题是我遇到了代码来解决这个问题。我在点击按钮时尝试为事件添加更多助手，但Inspector总是会出现此错误： SyntaxError：位于0的JSON中的意外标记u 在Object.parse（native）。

我有一个与app.js分开的controller.js，然后我在我的app.module中注入了控制器。

如果你可以帮助我会很棒。在此先感谢。

以下是给我错误的代码：

'use strict';

/* Controllers */

angular.module('Erasmore.controllers', [])
  .controller('Posts', ['$scope', '$http',
    function($scope, $http, localStorageService) {
      $http.get("json/posts.json").success(function(data) {
        $scope.posts = data;
      });

      $scope.assistants = [{
        id: 1,
        name: "James Smith",
        nationality: "English"
      }, {
        id: 3,
        name: "Juan García",
        nationality: "Spanish"
      }, {
        id: 3,
        name: "Eduardo Cruz",
        nationality: "Spanish"
      }, {
        id: 4,
        name: "Jurgen Low",
        nationality: "German"
      }, ];

      var newParticipant = localStorage['assistantList'];
      if (newParticipant !== undefined) {
        $scope.newAssistant = JSON.parse(newParticipant);
      }

      $scope.newAssistant = {};

      $scope.addAssistant = function() {
        $scope.assistants.push($scope.newAssistant);
        $scope.newAssistant = "";
        localStorage['assistantList'] = JSON.stringify($scope.newAssistant);
        console.log(localStorage);
      };

    }
  ])

<div>
  <p>Are you coming?</p>
  <input placeholder="Enter your name" id="name" type="text" class="validate" ng-model="newAssistant.name">
  <input placeholder="Enter your nationality" id="nationality" type="text" class="validate" ng-model="newAssistant.nationality">
  <button class="waves-effect waves-light btn" ng-click="addAssistant()">Confirm</button>
  <button class="waves-effect waves-teal btn-flat modal-trigger">See Assistants</button>
  <ul>
    <li id="asistentes" ng-repeat="assistant in assistants">{{assistant.name}} <span>-</span> {{assistant.nationality}}</li>
  </ul>

Answer 1

问题是你没有注入localStorage服务

.controller('Posts', ['$scope', '$http',
function($scope, $http, localStorageService) {

你只注射了$ scope＆amp; $ HTTP

Angular JS中的LocalStorageModule用于保存数据

1 个答案: