JSFiddle - React, Tailwind, and code Playground
HTML
<form>
<input type="text" value="valor default" /><br />
<input type="radio" name="radio" checked="checked" />A
<input type="radio" name="radio" /> B<br />
<input type="checkbox" name="check" checked="checked" /> 1
<input type="checkbox" name="check" /> 2
<input type="checkbox" name="check" checked="checked" /> 3<br />
<select>
<option selected="selected">Opt 1</option>
<option>Opt 2</option>
</select>
</form>
<input type="button" id="resetar" value="Resetar" onclick="resetar()" />
JavaScript
function resetar()
{
$("form").each(function() {
this.reset();
});
}