Paradox | Class Project to Showcase Web Design Skills | Frontend Framework library

I wanted to bring statistics from Firebase to my website. To do this, I linked Firebase with Google Analytics in the settings in the "Integrations" tab

From there I copied the Property ID

Enabled Google Analytics Data API in my project

Then I replaced the Property ID with my own in this script and ran the script.

But I got an error:

Unable to detect a Project Id in the current environment. To learn more about authentication and Google APIs, visit:https://cloud.google.com/docs/authentication/getting-started

In PowerShell I've been trying different ways of stripping out all characters from a WinForms textbox other than the pattern I need and I cannot come up with a better solution for what I'm after; I am learning regex and need some guidance. This feels basic to me but I feel like I'm missing something obvious. I'm using the textbox's TextChanged event to prevent illegal characters from being typed and I have (what feels like) a bloated solution.

Goal:

• User allowed to type a single leading dollar sign followed by up to 6 chars from [A-V0-9]
  • If no $ is typed, the first legal character typed should produce a leading $ followed by said legal character (typing A will produce $A in the textbox)
  • If an illegal character is typed first, no leading $ should be produced in the textbox
• Illegal characters won't show up in the textbox
• Pasted text is processed/stripped as efficiently as possible
• The last character deleted will also delete the remaining $
  • If textbox shows $T and user backspaces the T leaving a single $, the remaining $ will also be deleted

Pasting into the textbox examples:

• $$-#AZY$B9=% would become $AB9
• Z))%ABC$YD144%$ would become $ABCD14
• $ZY%*#@! produces nothing in the textbox

Things I've tried so far:

• Using -split '^\${1}' and -replace '[^A-V0-9]' to strip out everything out, then adding the $ back in
  • I sincerely apologize - I cannot remember what issues surfaced from this solution, but it didn't behave the way I expected in certain circumstances
• Using a ForEach loop to inspect each character in the string and replace those that do not match [A-V0-9] then inserting a $ afterwards
  • This is the bloated solution I'm currently using
• Using a masked textbox, but the mask string doesn't accept a range of characters
• Setting $txtTextbox.MaxLength = 8
  • This prevents pasted text from being processed appropriately
• Quite a bit of Googling and fiddling with regexes, using regex101.com, playing with lookarounds etc
• Using a boolean flag to determine whether or not a single leading $ was manually typed/pasted in the first place so it doesn't get deleted as soon as it's typed (yet retain the ability to clear the textbox upon the last legal character being deleted whether using Backspace/Delete/CTRL+X to cut etc)
  • Finding an elegant solution to this paradox is evading me (allow $ to be typed but delete $ if it's the only remaining character in the textbox)

This is the mostly working solution I have thus far in the textbox's TextChanged event:

I use express js and firebase for user authorization. After registration, the user enters the profile.

How do I get the current account on the profile page and get its data? So that even after updating the page, you don't lose the current user?

I've read about onAuthStateChanged, but I don't understand how to use it in my code. (I wanted to in my profile.write js, but I don't understand how). Or get a token from cookies and receive it? Can I have an example?

server.js

Using Microsoft Books.xml https://docs.microsoft.com/en-us/previous-versions/windows/desktop/ms762271(v=vs.85)

Sample of first entry.

Trying to use this converter https://www.rebasedata.com/convert-paradox-to-mysql-online But the problem is that I have a Borland Paradox 5 database, which has 745 files and 176 DBS, and I exceed query length limits running this java applet.

I'm following the tutorials here and the code seems correct but when I test using assertions I get an error!

Laravel Sail, has a good premisse to create a zero dependency environment, with, php, redis, mariadb etc...

Please tell me why there is a distance between the QTabBar scroller buttons with a small width of the scroller buttons and how can this be fixed?

The figure below is a conceptual diagram used by Michael Clark, https://m-clark.github.io/docs/lord/index.html to explain Lord's Paradox and related phenomena in regression.