Bei folgendem Code gibt es nicht den eingegebenen Text aus
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Einkaufsliste</title>
<link rel="preconnect" href="https://fonts.gstatic.com">
<link href="https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,700;1,400&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.indigo-pink.min.css">
<script defer src="https://code.getmdl.io/1.3.0/material.min.js"></script>
<style>
body{
background-color: rgb(0, 83, 238);
font-family: 'Noto Serif', serif;
}
.content{
background-color: white;
width: 600px;
margin-left: 660px;
margin-right: 660px;
margin-top: 20px;
}
.content h1{
text-align: center;
font-size: 60px;
}
.content form{
padding-left: 125px;
width: 200px;
}
</style>
</head>
<body>
<div class="content">
<h1>Einkaufsliste</h1>
<!-- Simple Textfield -->
<form action="#">
<div class="mdl-textfield mdl-js-textfield">
<input class="mdl-textfield__input" type="text" id="liste1">
<label class="mdl-textfield__label" for="liste1">Produkt</label>
</div>
<button onclick="subFunc()" class="mdl-button mdl-js-button mdl-button--fab mdl-js-ripple-effect">
<i class="material-icons">add</i>
<p><var liste></var></p>
</button>
</form>
<script>
function subFunc(){
var liste = document.getElementById('liste1')
document.write(liste)
}
</script>
</div>
</body>
</html>