http://www.aliyun.com/zixun/aggregation/17326.html on Client "> Store data
HTML 5 provides two new ways to store data on the client side:
Localstorage-No time limit data storage
Sessionstorage-Data storage for a session
Before, these are all done by cookies. But cookies are not suitable for storing large amounts of data because they are passed by each request to the server, which makes cookies slow and inefficient.
In HTML 5, data is not delivered by each server request, but only when requested. It makes it possible to store large amounts of data without affecting the performance of the Web site.
For different sites, the data is stored in different areas, and a Web site can only access its own data.
HTML 5 uses JavaScript to store and access data.
Localstorage method
The data stored by the Localstorage method has no time limit. The data is still available the next day, the second week, or the following year.
How to create and access localstorage:
Instance
<script type= "Text/javascript" >
Localstorage.lastname= "Smith";
document.write (Localstorage.lastname);
</script>
Try it yourself, the code is as follows:
<! DOCTYPE html>
<html>
<body>
<script type= "Text/javascript" >
Localstorage.lastname= "Smith";
document.write ("Last Name:" + localstorage.lastname);
</script>
</body>
</html>
The following example counts the number of times a user accesses a page:
Instance
<script type= "Text/javascript" >
if (Localstorage.pagecount)
{
Localstorage.pagecount=number (Localstorage.pagecount) +1;
}
Else
{
Localstorage.pagecount=1;
}
document.write ("Visits" + Localstorage.pagecount + "time (s)");
</script>
Try it yourself, the code is as follows:
<! DOCTYPE html>
<html>
<body>
<script type= "Text/javascript" >
Localstorage.lastname= "Smith";
document.write ("Last Name:" + localstorage.lastname);
</script>
</body>
</html>
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
