Question

I have written code to save cookies in JavaScript. Now I need to clear the cookies irrespective of values that I assigned.

Are there any script modules to delete all cookies that were generated by Javascript?

My Sample Code:

document.cookie = 'ppkcookie2=another test; expires=Fri, 3 Aug 2001 20:47:11 UTC; path=/'  function createCookie(name,value,days) {     if (days) {         var date = new Date();         date.setTime(date.getTime()+(days*24*60*60*1000));         var expires = "; expires="+date.toGMTString();     }     else var expires = "";     document.cookie = name+"="+value+expires+"; path=/"; }  function readCookie(name) {     var nameEQ = name + "=";     var ca = document.cookie.split(';');     for(var i=0;i < ca.length;i++) {         var c = ca[i];         while (c.charAt(0)==' ') c = c.substring(1,c.length);         if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);     }     return null; }  function eraseCookie(name) {     createCookie(name,"",-1); } 

How else could I clear all of the cookies?

Will there will be any problems when I test the code on the webserver?

Answer 1

On the face of it, it looks okay – if you call eraseCookie() on each cookie that is read from document.cookie, then all of your cookies will be gone.

Try this:

var cookies = document.cookie.split(';'); for (var i = 0; i < cookies.length; i++)   eraseCookie(cookies[i].split('=')[0]); 

All of this with the following caveat:

• JavaScript cannot remove cookies that have the HttpOnly flag set.