JSFiddle - React, Tailwind, and code Playground
by naokiota
HTML
<form action="confirm_sendemail.php" method="post" enctype="multipart/form-data" name="form1" id="form1" >
Subject : <br/>
<input type="text" name="subject" id="subject" required/> <br/>
Choose your upload type: <br />
<input type="radio" name="email" id="database" onclick="database_csv()" checked value="databse"/>Database
<input type="radio" name="email" id="csv" onclick="csv_database()" value="csv"/>CSV<br/>
<div id="send_type" _style="display:none">
<input name="csv" type="file" id="csv" accept=".csv" /> <br/>
</div>
Content : <br/>
<textarea name="message" cols="50" rows="10" required></textarea><br/>
<input type="submit" name="submit" value="Submit"/>
</form>
JavaScript
function database_csv(){
alert("a")
$('#send_type').hide();
$("#send_type :input").prop("disabled", true);
}
function csv_database(){
alert("b")
$('#send_type').show();
$("#send_type :input").prop("disabled", false);
}