title: What COLON " : " mean inside JQuery selector?
body: <p>I can't understand the function of colon inside the JQuery selector</p>
  
  <pre><code>$(function() {
      $('.myForm2').on('submit', function(e) {
          var data = $(".myForm2 :input").serialize();
          console.log(data);
          $.ajax({
              type: "POST",
              url: "index.php",
              data: data,
          });
          e.preventDefault();
      });
  });
  </code></pre>
  
  <p>in this case I guess that is going to serialize all the Inputs TAGS inside the form that has the class name equal to "myForm".</p>
  
  <p>But how can I get an input that has a certain Class or Id name inside the form "myForm" by using this method ?</p>
  
  <p>Thank you for you help !  </p>