index.html

<!DOCTYPE html>
<html>
<head>
    <title>Median</title>
    <script type="text/javascript" src="median_mean.js">
            console.log(mean([12,451,5123421,2134]));
    </script>
    <link rel="stylesheet" href="style.css">
    <link rel="stylesheet" href="bootstrap.css">
</head>
<body>

    <h1>Mean Calculator</h1>

    <hr>

    <div class="main">
        <input type="text" class="form-control" id="input" placeholder="Input your numbers">

            <div class="button-div">
                <button class="btn btn-primary" onclick='show( "out", meanOut( "input" ) )'>Get Mean</button>
                <button class="btn btn-primary" onclick='show( "out", medianOut(  "input" ) )'>Get Median</button>
            </div>

        <p id="out"></p>
    </div>

</body>
</html>