Simplificação jquery - ptSO 384178

Simular https://pt.stackoverflow.com/questions/383439/qual-foi-o-erro

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form id="form1" method="POST">
Número de série: <input type="text" id="numeroSerie" required><br>
<br>Usuário: <input type="text" id="user" required><br>
<br>Senha: <input type="password" id="pass" required><br>
<br><input type="submit" id="enter">
</form>

JavaScript

$('#form1').submit(function(){
      $(this).find('input:text').each(function(){
            $(this).val($.trim($(this).val()));
            console.log('->' + $(this).val() + '<-');
      });
});