JSFiddle - React, Tailwind, and code Playground

HTML

<form action="test.php" method="post">
  <input id="as" class="tosend" type="text" name="valor[]" value="1"><br>
  <input id="as" class="tosend" type="text" name="valor[]" value="2"><br>
  <input id="as" class="tosend" type="text" name="valor[]" value="3"><br>
  <input id="btntosend" class="btntosend" type="submit" value="Submit">
</form>

JavaScript

$('#btntosend').on( 'click', function(e) { 
	e.preventDefault();
   $('.tosend').each(function() {//Passar por cada radio da classe rdShipMo
      alert($(this).val());
   });   
});