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Cookies

Medium

In plain terms

document.cookie stores small strings. Sent with every request. Use for auth tokens, preferences. Limited size (~4KB). Parse manually or use library.

What you need to know

  • •document.cookie
  • •max-age, path, Secure
  • •Small, sent with requests

Try it yourself

Copy the code below and run it in your browser console or a code editor:

document.cookie = 'user=john; max-age=3600; path=/'; document.cookie = 'theme=dark; Secure; SameSite=Strict';

Learn more

Dive deeper with these trusted resources:

MDNjavascript.infoTutorialsPoint