<script src="https://cdn.rawgit.com/Prosen-Ghosh/verify-bangla-digit/2e4108c3/verify-bangla-digit.js"></script>

<script src="https://rawgit.com/Prosen-Ghosh/verify-bangla-digit/master/verify-bangla-digit.js"></script>

const verifyDigit = require('verify-bangla-digit');

verifyDigit("১২৩৪৫৬৭৮৯০");
//=> true


verifyDigit("");
//=> false

verifyDigit("১২৩৪৫৬৭৮৯০a");
//=> false


//<input type="text" value="১২" id="digit">
verifyDigit(document.getElementById('digit').value);
//=> true