i made this code related to sign up screen , when the user enter his id and password for the first time the user store these info to the firebase ,, but i have aproblem when the same user enters again with his id and different passsword froom the first ,the latest password remove the first and will be the password >>> how do iprevent that from happening .. for example when he types his id again with new password in sign up screen anotification will appear show to him you already sign up try sign in
Get the current password back from firebase first, then test it against the entered password.
thank you
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