How Can I Delete All Cookies Using JavaScript?

Purging Cookies with JavaScript

In the realm of web development, the ability to manage cookies is pivotal. JavaScript, a versatile web scripting language, provides a powerful mechanism to remove all cookies associated with the current domain.

Solution

The JavaScript code below efficiently deletes every cookie within the current domain:

function deleteAllCookies() {
    // Split the cookie string into an array of individual cookies
    document.cookie.split(';').forEach(cookie => {
        // Determine the name of the cookie
        const eqPos = cookie.indexOf('=');
        const name = eqPos > -1 ? cookie.substring(0, eqPos) : cookie;
        // Expire the cookie into oblivion
        document.cookie = name + '=;expires=Thu, 01 Jan 1970 00:00:00 GMT';
    });
}

Limitations

While this solution is effective in most scenarios, it's important to be aware of its limitations:

1. HttpOnly Flag: Cookies with the HttpOnly flag are inaccessible to JavaScript, so they cannot be deleted using this method.
2. Path Value: Cookies with a Path value can only be deleted if the Path value is explicitly specified in the code. Otherwise, these cookies will remain intact.

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