<div class="ui main container">
    <h1>Ausgabe des umgedrehten Strings</h1>
  <a class="ui black label">ES 5</a>
    <a class="ui black label">split()</a>
      <a class="ui black label">join()</a>
  <a class="ui black label">reverse()</a><br><br>
  <form class="ui form">
    <div class="field">
    <label>Gib einen Text ein</label>
    <input type="text" class="yourString" name="yourString" placeholder="Gib einen Text ein">
  </div>
    
  <div class="ui labeled button" >
    <div class="ui massive violet button">
      <i class="sync icon"></i>Ausgabe des umgedrehten Strings
    </div>
 <a class="ui basic violet left pointing label">
      
    </a>
  </div>
  </form>
</div>
.ui.container {
  width: 1127px;
  margin: 0 auto;
  padding: 20px;
}
View Compiled

  $('.ui.button').click(function(){
    var yourString = ($(".yourString").val());
    giveStringReverseBack(yourString);
  });

// function return reverse string
function giveStringReverseBack(string) {
  var myArray = string.split('');
  var reverseArray = myArray.reverse();
  var stringBack = reverseArray.join('');
      $('.ui.label.pointing').text(stringBack);
}

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.4.1/semantic.min.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.4.1/semantic.min.js