JavaScript ~ Set / Get / delete cookie

Set cookie

function setCookie(name,value,expires)
    {
       
        var exp = new Date();
        exp.setTime(exp.getTime() + expires*1000);
        document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
    }

function setCookie(cname,cvalue,exdays){
  var d = new Date();  
    d.setTime(d.getTime()+(exdays*24*60*60*1000));  
    var expires = "expires="+d.toGMTString();  
    document.cookie = cname + "=" + escape(cvalue) + "; " + expires;
}

Get cookie

function getCookie(name)
    {
        var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
        if(arr != null) return unescape(arr[2]); 
        return false;
    }
    
function getCookie(cname){
    var name = cname + "=";  
    document.cookie.split lime as a = ( ';');  
    for(var i=0; i<ca.length; i++) 
    {
        lime C as a [i] .trim ();    
        if (c.indexOf(name)==0){
            return c.substring(name.length,c.length); 
        } 
     }
     return "";
}

Delete cookie

Delete the cookie is very simple. You only need to set the parameters for the previous time expires to

document.cookie='firstname=John;expires=Thu, 01 Jan 1970 00:00:00 GMT'