This is my asp code, can be the same done in Javascript?
HttpCookie cookie = this.Request.Cookies["Votes"];
if (cookie != null)
if (cookie.Values.Get(id.ToString()) == "true") return true;
return false;
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4 Answers
function readTheCookie(the_info)
{
// load the cookie into a variable and unescape it
var the_cookie = document.cookie;
var the_cookie = unescape(the_cookie);
// separate the values from the cookie name
var broken_cookie = the_cookie.split("some parameter"); // parameter depends on how the cookie is stored
var the_values = broken_cookie["some index"]; // index of the value that you want
}
These are all the parts of reading a cookie, you can use this snippet to achieve what you want.
8 Comments
dani
var the_cookie = unescape(the_cookie) just returns "Votes" without any values.
dani
while the var the_cookie = document.cookie; returns: the_cookie = "Votes=47=true&31=true&48=true"
dani
ans where do you use the_info parameter?
Mahesh Velaga
the_info is just a dummy parameter that i gave .. not to bother about it :) ; unescape(the_cookie) is mentioned because generally we escape the cookie while storing, may not be applicable all the time.. ; Its good that your cookie is getting values .. now split the cookie first with "&" parameter and the resulting strings with "=" as parameter in split function and do the rest .. :)
dani
is it possible to load only the "Votes" cookie? Because if i have more cookies on page, the_cookie = document.cookie; will return all of them concatenated in one string.
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document.cookie gives you access to the cookies in JavaScript. You will need to do some parsing to do what you want to do.
Comments
using this code
function setCookie(c_name, value, exdays) {
var exdate = new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString());
document.cookie = c_name + "=" + c_value;
}
function getCookie(c_name) {
var i, x, y, ARRcookies = document.cookie.split(";");
for (i = 0; i < ARRcookies.length; i++) {
x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));
y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);
x = x.replace(/^\s+|\s+$/g, "");
if (x == c_name) {
return unescape(y);
}
}
}
function GetSetCookie() {
var version = getCookie("version");
if (version != null && version != "") {
if (version == 'full') {
version = 'text';
}
else {
version = 'full';
}
}
else {
version = 'full';
}
setCookie("version", version, 365);
window.top.location.reload();
}
1 Comment
Saurav
Did you copy this from w3schools.com/js/js_cookies.asp ? If so, you should disclose it.
I have found this code in W3schools which works for me
function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays*24*60*60*1000));
var expires = "expires="+d.toUTCString();
document.cookie = cname + "=" + cvalue + "; " + expires;
}
function getCookie(cname) {
var name = cname + "=";
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);
if (c.indexOf(name) == 0) return c.substring(name.length, c.length);
}
return "";
}
function checkCookie() {
var user = getCookie("username");
if (user != "") {
alert("Welcome again " + user);
} else {
user = prompt("Please enter your name:", "");
if (user != "" && user != null) {
setCookie("username", user, 365);
}
}
}
