Edit This Code:
<!DOCTYPE html>
<html>
<body>

<img id="myImg" alt="Flower" src="klematis.jpg" width="150" height="113">

<p>Click the button to display each attribute's name and value of the image above.</p>

<button onclick="myFunction()">Try it</button>

<p id="demo"></p>

<script>
function myFunction() {
    var x = document.getElementById("myImg");
    var txt = "";
    var i;
    for (i = 0; i < x.attributes.length; i++) {
        txt = txt + x.attributes[i].name + " = " + x.attributes[i].value + "<br>";
    }
    document.getElementById("demo").innerHTML = txt;
}
</script>

</body>
</html>


Result:
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