HTML JS trigger button enter

Was trying to get this working that I saw from another post here. I got it working but I can get the enter to work. I tried to tie in https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_trigger_button_enter but for the life of me cant get both to work.

Hope someone can help!

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Untitled Page</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.11.0.min.js"></script>

<script type="text/javascript">

$(document).ready(function(){

    $('#button').click(function(e) {  
        var inputvalue = $("#input").val();
        window.location.replace(" http://www.example.com/page/"+inputvalue);

    });
});
</script> 
</head>
<body>

       <input type="text" value="11" id="input"> 
       <button type="button" id="button">Click Me!</button>
</body>
</html>