HTML5本地存储保存.toggleClass [英] HTML5 local storage save .toggleClass

问题描述

如何将切换的类保存到HTML 5本地存储？

How Can I save the toggled class into HTML 5 local storage?

这是我的简单切换功能：

This is my simple toggle function:

 /* Toggle */
    $('.bar-toggle').on('click',function(){
      $('.container').toggleClass('with_toggle');
    });

我真的不明白如何使用本地存储以及我遇到的所有示例都使用了.hide和.show并且找不到与toggleClass相关的任何内容

I don't really understand how to use the local storage and all the examples I came across use the .hide and .show and cannot find anything related to toggleClass

我不想使用.show和.hide，因为它们对于浏览器来说代价很高但是只需要我的切换课程的优势......

I wouldn't want to use the .show and .hide as they are costly for the browser but just take advantage of my toggle class...

小提琴：
小提琴示例

codepen：
http://codepen.io/anon/pen/oLvNgB

推荐答案

• 对元素使用id，否则在切换（删除）它的类后将无法定位该元素



<a href="javascript:void(0)" class="bar-toggle">toggle and save state</a>
<div id="container">
</div>





---






• use！important覆盖背景颜色



#container {
   background-color: #ededed;
    height: 200px;
    width: 200px;
}

.with_toggle {
   background-color: #aeaeae !important;
}





---






• 存储类名/状态为toggled



//retrieve current state
$('#container').toggleClass(window.localStorage.toggled);

/* Toggle */
$('.bar-toggle').on('click',function(){

   if (window.localStorage.toggled != "with_toggle" ) {
      $('#container').toggleClass("with_toggle", true );
      window.localStorage.toggled = "with_toggle";
   } else {
      $('#container').toggleClass("with_toggle", false );
      window.localStorage.toggled = "";
   }

});





---





http://jsbin.com/wimojapowo/1/edit?html,css,js,output

https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API/Using_the_Web_Storage_API

这篇关于HTML5本地存储保存.toggleClass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！