JSFiddle - React, Tailwind, and code Playground
by rjurd
HTML
<form id="registration" onSubmit="return CheckForm()">
<input type="checkbox" id="newsletter"id="myCheck" checked="checked" />Do you like summer?
<input type="submit" />
</form>
JavaScript
function CheckForm() {
if ($('#newsletter').prop('checked') === true) {
alert('Thank You');
return true;
}
else {
alert('Please answer the question');
return false;
}
}