Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $("button").click(function(){
        alert("Image width: " + $("img").attr("width"));
    });
});
</script>
</head>
<body>

<img src="img_pulpitrock.jpg" alt="Pulpit Rock" width="284" height="213"><br>

<button>Return the width of the image</button>

</body>
</html>