如何让每个用户的网站“独一无二”？

Question

I have made a "dating app" website where you can like hard-coded users - just an assignment not implemented in real life:). Whenever a user logs in - which it only can if it has SignUp - and likes a hard-coded match it gets saved via local storage. So whenever an other user logs in, that user has the exact same site and liked profiles. So my question is, how do you save a user action individually on a website - in theory - so not everyone share the same site. Links for articles would also be much appreciated, cause I investigated myself, but couldn't find any usefull articles.

Thank you for your help in advance!

Answer 1

I'm assuming you don't have a backend and that is why you are using local storage.

logalstorage is a set of (key, value) pairs. You'll need to make the key unique depending on the user that is logged in.

For example:

  let user = "Greg"
  localStorage.setItem.(user + "likes", likes);

and to get the data later

  let likes = localStorage.getItem.(user + "likes");

This idea of a unique key is exactly how databases work.