JS Cookies setting read delete

<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title>JS Cookies settings read and delete</title>
</head>
<body>
<script type="text/javascript">
//set cookies
function setCookie(name,value){
    var Days = 30;
    var exp = new Date();
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}

//read cookies
function getCookie(name){
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
    if(arr=document.cookie.match(reg))
        return unescape(arr[2]);
    else
        return null;
}

// delete cookies
function delCookie(name){
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var gallop = getCookie (name);
    if(cval!=null)
        document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
// use example
setCookie("website","onestopweb.iteye.com");
alert(getCookie("website"));
//delCookie("website");
</script>
</body>
</html>

Effect picture:

Encapsulate the above method:

<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title>JS Cookies settings read and delete</title>
</head>
<body>
<script type="text/javascript">
var cookie = {
    set:function(name,value){
    	var Days = 30;
        var exp = new Date();
        exp.setTime(exp.getTime() + Days*24*60*60*1000);
        document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
    },
    get:function(name){
    	var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
        if(arr=document.cookie.match(reg))
            return unescape(arr[2]);
        else
            return null;
    },
	delete:function(name){
		var exp = new Date();
	    exp.setTime(exp.getTime() - 1);
	    var cval=cookie.get(name);
	    if(cval!=null){
	    	document.cookie= name + "="+cval+";expires="+exp.toGMTString();
	    }  
    }
}
cookie.set("user","chaoyi2");//Set to expire in 24 days
alert(cookie.get("user"));//获取cookie
//cookie.delete("user");
</script>
</body>
</html>

JS Cookies setting read delete

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