JavaScript implements the method of setting, fetching, and deleting cookies _javascript tips

The examples in this article describe the methods that JavaScript implements to set up, get, and delete cookies. Share to everyone for your reference. The implementation method is as follows:

* * Set the corresponding value of the key * Value:cookie of the cookie * * * * * * * * Name:cookie * Expires:cookie The valid time * path: Specifies the path of the accessible cookie * DOMA  
  In: Specify host name for accessible cookies * Secure: Security/function Setcookie (name,value,expires,path,domain,secure) {//cookie key value pair 
  var str = name + "=" + escape (value); 
    Set the lifetime of the cookie, in hours if (expires > 0) {var date = new Date (); 
    var ms = Expires * 3600 * 1000; 
    Date.settime (Date.gettime () + ms); str + = "; 
  Expires= "+ date.togmtstring (); } if (path) {str + =; 
  Path= "+ path; } if (domain) {str =; 
  domain= "+ domain; } if (secure) {str =; 
  Secure "; 
} document.cookie = str; 
  * * * Get the key/function GetCookie (cookie_name) {var value = null for cookie * *COOKIE_NAME:COOKIE;  
  var allcookies = Document.cookie;  
  var cookie_pos = Allcookies.indexof (cookie_name);  
  If an index is found, it means that the cookie exists,//otherwise, it does not exist.  
    if (Cookie_pos!=-1) {//Place the Cookie_pos at the beginning of the value, just add 1 to the value.Cookie_pos + = cookie_name.length + 1;  
    var cookie_end = Allcookies.indexof (";", Cookie_pos);  
    if (cookie_end = = 1) {cookie_end = Allcookies.length;  
  } value = Unescape (allcookies.substring (Cookie_pos, cookie_end));  
return value; 
  * * * Delete cookie * *cookie_name:cookie key/function Delcookie (cookie_name) {var exp = new Date (); 
  Exp.settime (Exp.gettime ()-1); 
  var value = GetCookie (Cookie_name); 
  if (value) {document.cookie= cookie_name + "=" + Value + "; expires=" + exp.togmtstring ();

 } 
}

The

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