Question

我的localStorage.getItem没有更新数据库中的数据。但只有当我重新运行第二个程序时才会发生更改，它会更新localStorage并显示修改后的数据。

$scope.projectData = $.parseJSON(localStorage.setItem('projectData'));
 (function() {
   console.log('Local Storage Updated')
   return localStorage.getItem('projectdata');
 })();

我做错了什么？

Answer 1

你就是这样做的

假设您的projectData是一个Object，那么您将这样做。

//localStorage.setItem('key','value');
//localStorage.getItem('key');
//You don't need to json stringify or parse if its just a string value.
localStorage.setItem('projectData', JSON.stringify($scope.projectData));
 (function() {
   console.log('Local Storage Updated')
   return JSON.parse(localStorage.getItem('projectdata'));
 })();

假设您的projectData是一个String，那么您将这样做。

//localStorage.setItem('key','value');
//localStorage.getItem('key');
//You don't need to json stringify or parse if its just a string value.
localStorage.setItem('projectData', $scope.projectData);
 (function() {
   console.log('Local Storage Updated')
   return localStorage.getItem('projectdata');
 })();

Answer 2

试试这样：

 $scope.projectData = {"prodnum": "63",
            "price": "139.00",
            "prodname": "PEANUT BUTTER INDULGENCE MS",
            "quantity": "1.00",
            "tax_amount": "6.95",
            "parent_id": "0"}
     localStorage.setItem('projectData', JSON.stringify($scope.projectData));

localStorage不更新我的projectData

2 个答案: