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JavaScript

Mark Libario
Mark Libario
9,003 Points

I dont understand why this simple Jquery doesnt work with the .show method

Hey guys,

Im trying to apply a JQ on the element class on my Jumbotron.

When i just use the .hide() method, it works. but when I add the .show("slow"), it doesnt animate to anything as if it never moved in the first place.

<!DOCTYPE html>
<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous"><link rel="stylesheet" href="css/style.css">
  </head>
  <body>
    <!-- Navbar -->
    <ul class="nav justify-content-center">
      <li class="nav-item">
        <a class="nav-link active" href="#">Active</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
    <!-- /Navbar -->

    <!-- Jumbotron-->
    <div class="jumbotron bg-img text-white bg-overlay text-center ">
      <p class="display-2 element"> <span>Hello World!</span></p>
      <p class="lead">This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information.</p>
      <hr class="my-4">
      <p>It uses utility classes for typography and spacing to space content out within the larger container.</p>
      <p class="lead">
        <a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a>
      </p>
    </div>
    <!-- /Jumbotron -->


    <h1>Hello, world!</h1>

    <!-- jQuery first, then Tether, then Bootstrap JS. -->
    <script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
  <script src="js/app.js"></script>
  </body>
</html>

Heres the javascript

$(".element").hide().show("slow");

1 Answer

Aleksandr Antonov
Aleksandr Antonov
15,876 Points

the code runs faster than you can catch it. Fist of if youd want the element to hiddent when the page load I'd suggest ot add a style to the header of your file

  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous"><link rel="stylesheet" href="css/style.css">
  <style rel="stylesheet">
       .element{
              display:none;
      }
 </style>
  </head>

This will hide the content on load. Then if youd like to show it once everything loads add

     $(document).ready(function(){
          $(".element").show("slow");
     });

$(document).ready forces the script to run only after everything have been loaded