使用 HTML5 localStorage 和 jQuery 添加到收藏夹/书签 [英] Add to favorites/bookmark using HTML5 localStorage and jQuery

问题描述

我想在我的一个项目中添加添加到收藏夹/书签"功能，但我对此完全空白.

I want to add 'add to favorites/bookmark' feature in one of my projects, but am totally blank regarding the same.

基本上，如果用户想从收藏夹中添加/删除，我使用引导程序字形供用户选择.我做了一些研究，发现 html5 localStorage 概念很合适，但无法真正弄清楚它对我的项目的确切作用.如果这里有人可以指导我，那将是一个很大的帮助.

Basically, I'm using bootstrap glyphicons for user to select it if he wants add/remove from favorites. I did some research and found html5 localStorage concept suitable but can't really figure out its exact working for my project. It would be a great help if anyone here can guide me on it.

这是html:

<h1>test</h1>
<table class="'basic">

    <tr>
        <td><div class="glyphicon glyphicon-star-empty icon bkmark_icon"> </div></td>
        <td>A</td>
    </tr>
     <tr>
        <td><div class="glyphicon glyphicon-star-empty icon bkmark_icon"> </div></td>
        <td>B</td>
    </tr>
     <tr>
        <td><div class="glyphicon glyphicon-star-empty icon bkmark_icon"> </div></td>
        <td>C</td>
    </tr>
</table>

<br><button class="btn">You have selected:</button>

因为我不太了解jquery中localStorage的实现，所以没有添加，不过js文件暂时是这样的:

since I don't really know the implementation of localStorage in jQuery, haven't added it, yet this is what js file has for now:

$(function() {

   $(document).on('click', '.bkmark_icon', function(){

       $(this).toggleClass('glyphicon-star-empty glyphicon-star');
   // localStorage.setItem('display', $(this).is(':visible'));

   });

   $(document).on('click', '.btn', function(){
       var bkmark_item = '<table><tr><td><div class="glyphicon glyphicon-star icon bkmark_icon"></div></td><td>*selected*</td></tr></table>';
       $(bkmark_item).insertAfter('h1');

   });

});

我确实搜索了它并发现了这个堆栈溢出answer合适.

i did search over it and found this stack overflow answer appropriate.

我需要什么?

1. 当用户点击 glyphicon-star-empty 时，它应该切换到 glyphicon-star 并且相关项目应该被添加到 localStorage(即收藏夹).
2. 当用户点击您已选择:"按钮时，它应该删除表格中的当前内容并仅显示收藏的项目(在同一页面上)，并提供取消收藏的选项.

这是我正在做的fiddle.

推荐答案

尝试创建一个 JavaScript 对象并将其序列化以将其保存在 localStorage 中.使用这样的东西 -

Try creating a JavaScript object and serialize it to save it in localStorage. Use something like this -

var bookmarkedItems = [];
function ItemObject(name, content)
{
   this.name = name;
   this.content = content;
}

function addItem()
{
  bookmarkedItems.push(new ItemObject('Item1', 'Content1'));
}

function saveToLocalStorage(item)
{
  var ob = localStorage.get('KEY');
  if(ob)
  {
     bookmarkedItems = JSON.parse(ob);
  }
  bookmarkedItems.push(item);
  localStorage.set('KEY', JSON.stringify(bookmarkedItems);
}

或

参考下面的代码 -

   var storageService = function () {

        var STORAGE_KEY = "bookmarkitems";
        var bookmarkitems = {};

        var init = function () {
            bookmarkitems = sessionStorage.getItem(STORAGE_KEY);
            if (bookmarkitems) {
                bookmarkitems = JSON.parse(bookmarkitems);
            }
            else {
                bookmarkitems = {};
            }
        };

        var set = function (key, value) {
            bookmarkitems[key] = value;
            updateStorage();

        };

        var get = function (key) {
            return bookmarkitems[key];
        };

        var updateStorage = function () {
            sessionStorage.setItem(STORAGE_KEY, JSON.stringify(bookmarkitems));
        };

        return {
            init: init,
            set: set,
            get: get,
            updateStorage: updateStorage
        };
    };

这篇关于使用 HTML5 localStorage 和 jQuery 添加到收藏夹/书签的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！