JSFiddle - React, Tailwind, and code Playground
by Neeraj Yadav
HTML
<input type = "file" id="file"/>
<input type="button" id="ac" value="click"/>
JavaScript
$('#ac').click(function()
{
var filVal = $('#file').val();
if(filVal=='')
{
alert("empty input file");
}
else{
alert("check");
}
});