Is localStorage considered a cookie by the browser

Question

I am making a small HTML page with Javascript. It won't need a server side, but i need store what the person have done, so i am using localStorage.(A checklist)

Now a days browsers have the option to do not store cookies, and sites warns the user if they use cookies or not.

So my questions are:

1:I need to warn the user that data is being stored, but just in the client side?

2:Browsers considers localStorage and sessionSotrage a kind of a cookie? I mean, do not save the data when the user select to always erase the cookies or consider it a kind of a threat.

Answer 1

I need to warn the user that data is being stored, but just in the client side?

It depends on the specific legislation that you are concerned about. In the UK, for instance, the wording of The Privacy and Electronic Communications (EC Directive) Regulations 2003 says:

, a person shall not use an electronic communications network to store information, or to gain access to information stored, in the terminal equipment of a subscriber or user unless the requirements of paragraph (2) are met.

While it is commonly referred to as "The Cookie Law", it definitely does not apply solely to cookies.

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Browsers considers localStorage and sessionSotrage a kind of a cookie?

No

I mean, do not save the data when the user select to always erase the cookies

When erasing them, Chrome bundles local storage with cookies. Doing a comprehensive investigation into all the circumstances where all browsers allow the user to determine when cookies and local storage will be erased is a bit beyond the typical scope of a SO question though.