This time I will show you how to implement the password remembering function in h5. What are the precautions for h5 to implement the remembering password function. The following is a practical case, let’s take a look.
HTML5 provides two new methods of storing data on the client side:
localStorage - data storage without time limit
sessionStorage - data for a session Before storing
, these are all done by cookies. But cookies are not suitable for storing large amounts of data because they are passed with each request to the server, which makes cookies slow and inefficient.
In HTML5, data is not passed by every server request, but data is only used when requested. It makes it possible to store large amounts of data without affecting website performance.
For different websites, data is stored in different areas, and a website can only access its own data.
HTML5 uses JavaScript to store and access data.
The data stored by the localStorage method has no time limit. The data is still available after the next day, week or year.
<!DOCTYPE html> <html> <head> <title></title> <meta charset="utf-8"> <script src="http://libs.baidu.com/jquery/1.9.1/jquery.min.js"></script> </head> <style type="text/css"> form{ width: 300px; padding: 10px 0px 20px 30px; height:auto; border-radius: 6px; border-left:8px solid #19a049; background:#eee; margin:100px auto; } #user,#pass{ padding: 8px; outline: none; background: transparent; border:1px solid #999; margin-top: 5px; } #sub{ padding: 6px; outline: none; border:none; background: #19a049; color:#fff; width: 150px; border-radius: 6px; cursor: pointer; } </style> <body> <form action="" method="" onsubmit="return loginBtn_click();"> <h3 id="Log-nbsp-in">Log in</h3> <input type="text" name="user" placeholder="user" id="user"> <input type="password" name="pass" placeholder="password" id="pass"> <input type="checkbox" id="remember" checked><br/><br/> <input type="submit" id="sub"> </form> </body> <script type="text/javascript"> $(document).ready(function(){ var strName = localStorage.getItem('keyName'); var strPass = localStorage.getItem('keyPass'); if(strName){ $('#user').val(strName); }if(strPass){ $('#pass').val(strPass); } }); function loginBtn_click(){ var strName = $('#user').val(); var strPass = $('#pass').val(); localStorage.setItem('keyName',strName); if($('#remember').is(':checked')){ localStorage.setItem('keyPass',strPass); }else{ localStorage.removeItem('keyPass'); } } </script> </html>
I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!
Related reading:
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How to solve various ie6-ie10 problems Compatibility issues
#htmlHow to add the quantity subscript on the message button
The above is the detailed content of How to implement the remember password function in h5. For more information, please follow other related articles on the PHP Chinese website!

html5的div元素默认一行不可以放两个。div是一个块级元素,一个元素会独占一行,两个div默认无法在同一行显示;但可以通过给div元素添加“display:inline;”样式,将其转为行内元素,就可以实现多个div在同一行显示了。

html5中列表和表格的区别:1、表格主要是用于显示数据的,而列表主要是用于给数据进行布局;2、表格是使用table标签配合tr、td、th等标签进行定义的,列表是利用li标签配合ol、ul等标签进行定义的。

固定方法:1、使用header标签定义文档头部内容,并添加“position:fixed;top:0;”样式让其固定不动;2、使用footer标签定义尾部内容,并添加“position: fixed;bottom: 0;”样式让其固定不动。

HTML5中画布标签是“<canvas>”。canvas标签用于图形的绘制,它只是一个矩形的图形容器,绘制图形必须通过脚本(通常是JavaScript)来完成;开发者可利用多种js方法来在canvas中绘制路径、盒、圆、字符以及添加图像等。

html5中不支持的标签有:1、acronym,用于定义首字母缩写,可用abbr替代;2、basefont,可利用css样式替代;3、applet,可用object替代;4、dir,定义目录列表,可用ul替代;5、big,定义大号文本等等。

html5废弃了dir列表标签。dir标签被用来定义目录列表,一般和li标签配合使用,在dir标签对中通过li标签来设置列表项,语法“<dir><li>列表项值</li>...</dir>”。HTML5已经不支持dir,可使用ul标签取代。

html5是指超文本标记语言(HTML)的第五次重大修改,即第5代HTML。HTML5是Web中核心语言HTML的规范,用户使用任何手段进行网页浏览时看到的内容原本都是HTML格式的,在浏览器中通过一些技术处理将其转换成为了可识别的信息。HTML5由不同的技术构成,其在互联网中得到了非常广泛的应用,提供更多增强网络应用的标准机。

因为html5不基于SGML(标准通用置标语言),不需要对DTD进行引用,但是需要doctype来规范浏览器的行为,也即按照正常的方式来运行,因此html5只需要写doctype即可。“!DOCTYPE”是一种标准通用标记语言的文档类型声明,用于告诉浏览器编写页面所用的标记的版本。


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