JavaScript Intensive Tutorial-cookie Object

This article ish5eduAgency officialHTML5 Trainingtutorials, the main introduction:JavaScript Intensive Tutorials--cookie Object
 
Cookie object:

is a user data information (cookie data) stored in the cookie folder of the client's hard disk in the form of a file (cookies file). The cookie file is established by the Web site visited to hold the session data between the client and the Web site for a long time, and the cookie data is only allowed to be read by the Web site visited.
 
Storing Cookies

<script> function Savecookie (cname,cvalue,exdays) {var d = new Date ();        D.settime (D.gettime () +exdays*24*60*60*1000);        var exprices = "exprices=" + d.togmtstring (); Document.cookie = cname+ "=" +cvalue+ ";"    +exprices; }

read Cookies

 function  readcookie (CNAME) {        var name  = cname+ "=";         var ck =document.cookie.split (";");         for (var n=0;n<ck.length;n++) {             var c=ck[n].trim ();             if (C.indexof ("name") ==0) {                 return c.substr (name.length, c.length);             }        }     } 

html

<input type= "button" value= "Storage" <input type= "button" value= "read" onclick= "alert (Readcookie (' name '))" >

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JavaScript Intensive Tutorial-cookie Object