Creating and Reading Cookie Values in JavaScript
How can you manipulate cookies in JavaScript? To answer this question, let's delve into the provided functions:
Creating a Cookie
To set a cookie, utilize the createCookie function:
function createCookie(name, value, days) {
var expires;
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
expires = "; expires=" + date.toGMTString();
}
else {
expires = "";
}
document.cookie = name + "=" + value + expires + "; path=/";
}
- name: The name of the cookie.
- value: The value to be stored in the cookie.
- days: The number of days the cookie will remain valid (optional).
Reading a Cookie
To retrieve a cookie's value, employ the getCookie function:
function getCookie(c_name) {
if (document.cookie.length > 0) {
c_start = document.cookie.indexOf(c_name + "=");
if (c_start != -1) {
c_start = c_start + c_name.length + 1;
c_end = document.cookie.indexOf(";", c_start);
if (c_end == -1) {
c_end = document.cookie.length;
}
return unescape(document.cookie.substring(c_start, c_end));
}
}
return "";
}
- c_name: The name of the cookie you want to retrieve.
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