Tryit Editor v2.7

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<!DOCTYPE html>
<html>
<body>

<p>This example uses the HTML DOM to assign an "ondblclick" event to a p element.</p>

<p id="demo">Double-click me.</p>

<script>
document.getElementById("demo").ondblclick = function() {myFunction()};

function myFunction() {
    document.getElementById("demo").innerHTML = "I was double-clicked!";
}
</script>

</body>
</html>