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Asked: 2026-05-16T01:31:54+00:00

I need some help creating the necessary Javascript to add values to an existing

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I need some help creating the necessary Javascript to add values to an existing cookie. I know how to do it in c#, but it needs to be done in Javascript in this scenario.

This is the C# Code:

HttpCookie myCookie = HttpContext.Current.Request.Cookies["SiteSettings"];
myCookie.Values.Add(varName, varValue);
myCookie.Expires = DateTime.Now.AddYears(1);
HttpContext.Current.Response.Cookies.Add(myCookie);

Can anyone help me convert this to Javascript? I’ve searched high and low on the internet, and most tutorials don’t have a way of specifying the cookie (this site has more than one cookie).

Thank you very much,
Andrew

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1 Answer

  1. Editorial Team

    Not sure where you’ve looked, since the first hit on google for “javascript cookies” is this excellent article by ppk: http://www.quirksmode.org/js/cookies.html

    It should answer your question and explain other JS-related cookie-nuances, including example functions for handling cookies in a more sensible way than string concatenation.

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