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<body>
<h1>HTML DOM Events</h1>
<h2>The onclick Event</h2>
<p>The onclick event triggers a function when an element is clicked on.</p>
<p>Click to trigger a function that will output "Hello World":</p>
<button onclick="myFunction()">Click me</button>
<p id="demo"></p>
<script>
function myFunction() {
document.getElementById("demo").innerHTML = "Hello World";
}
</script>
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