Clever jQuery Chaining

“With jQuery, you can chain together actions/methods.

Chaining allows us to run multiple jQuery methods (on the same element) within a single statement.”

.focus {
    border-color:red;
}

  $(document).ready(function() {

    $('input').blur(function() {
        $('input').removeClass("focus");
      })
      .focus(function() {
        $(this).addClass("focus")
      });
  });