JSFiddle - React, Tailwind, and code Playground
HTML
<div id="amount" datamin=""></div>
JavaScript
$('#amount').attr( 'datamin','1000');
alert($('#amount').attr( 'datamin'));
<div id="amount" datamin=""></div>
$('#amount').attr( 'datamin','1000');
alert($('#amount').attr( 'datamin'));