TUI.js (Tunisia’s Unique Identifier)

The unique identifier serves as the taxpayer's identifier to the tax authorities in Tunisia, it's composed of 7 digits with a control key, for more details check out trovit.tn

Usage in the browser

<script src="https://cdn.jsdelivr.net/npm/@mczentechnologies/tui"></script>
<script>
	new TUI("0789012H").isValid(); // true
</script>