JSFiddle - React, Tailwind, and code Playground

HTML

<div id="mypage" data-role="page">
    <a href="#" id="btn1" data-role="button">download 1</a>
</div>

JavaScript

$(document).ready(function(){
    $("#btn1").attr({
        'download' : 'file1.csv',
        'href' : "file;one",
        'target' : '_blank'
    });
});