How Can I Create and Read Cookies Using JavaScript?

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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