ffprog:ffprogjava2016:javascript [https://fginfo.ksbg.ch Fachgruppe Informatik der KSBG]

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<code html hello.html>
<html>
<head>
  <title>JavaScript Testseite</title>
</head>
<body>

<h1>Mein Titel</h1>

<button onclick="alert('hallo')">
Click mich!</button>

</body>
</html>
</code>

<code html rechner.html>
<html>
<head>
  <title>JavaScript Testseite</title>
</head>
<body onload="neueRechnung()">

<script>
function neueRechnung() {
   var a = Math.floor(Math.random()*20);
   var b = Math.floor(Math.random()*20);
   richtig = a+b;
   var span = document.getElementById('rechnung');
   span.innerHTML = a+" + "+b+" = ?";
}

function hello() {
   var z = document.getElementById('zahl').value;
   if (z==richtig) {

   } else {

   }
   var span = document.getElementById('resultat');
   span.innerHTML = 'Resultat = '+r1;
   span.style.color="red";
}  
</script>

<h1>Mein Titel</h1>

<span id="rechnung"></span><br>
Ihr Resultat: <input id="zahl" />
<br>
<button onclick="hello()">
Click mich!</button>

<span id="resultat"></span>

</body>
</html>
</code>