Question 1

How to set a cookie that expires in 1 hour with js-cookie?

Accepted Answer

Use the expires attribute with a Date object: Cookies.set('name', 'value', { expires: new Date(Date.now() + 3600000) }). For sub-day expirations, refer to the Wiki FAQ for detailed examples.

Question 2

js-cookie vs native document.cookie: which is better?

Accepted Answer

js-cookie abstracts browser inconsistencies and provides a cleaner API, but native document.cookie offers more direct control if you need to avoid library overhead. For most projects, js-cookie's reliability and size make it preferable.

Question 3

How to delete all cookies using js-cookie?

Accepted Answer

Loop through Cookies.get() to get all cookie names, then call Cookies.remove() for each with appropriate attributes. Note that domain and path must match how cookies were set, as per the README warnings.

Question 4

Does js-cookie work with server-side rendering in Next.js?

Accepted Answer

It can be used client-side, but server-side requires conditional imports or using the server integration docs. For SSR, consider Next.js built-in cookies or a universal library for smoother integration.

Question 5

Can I use js-cookie to handle authentication tokens securely?

Accepted Answer

Yes, by setting secure, HttpOnly (via server-side), and sameSite attributes, but js-cookie doesn't encrypt tokens—you must handle encryption separately or rely on server-side measures for full security.

Question 6

How to avoid namespace conflicts when embedding js-cookie in a widget?

Accepted Answer

Use the noConflict method: var MyCookies = Cookies.noConflict(). This assigns the API to a new variable and restores the original window.Cookies, as shown in the README for third-party script safety.

js-cookie

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