JSFiddle - React, Tailwind, and code Playground

HTML

<form action="recopilar.php" method="post" id="formurecopilar" name="formure"  autocomplete="off"  onsubmit="return validarrecopilar()">
        <table>
            <tr>
                <td>¿Que tienes en tu mente?</td>
                <td><textarea name="inforecopilar" id="inforecopilar" rows="4" cols="60"></textarea></td>
            </tr>
           
        </table>
        <input type="submit" name="submit" id="botonrecopilar" value="Recopilar" />
        </form>



 
<script src="validarrecopilar.js" type="text/javascript"> </script>

JavaScript

function validarrecopilar() 
{
     
        
    
    if (!document.formure.inforecopilar.value)
    {
        alert("textarea vacio");
        return false;
    }
        
  
  return true;
}