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<html><body><h1>JavaScript Closures</h1><p>Counting with a local variable.</p><p id="demo">0</p><button type="button" onclick="myFunction()">Count!</button><script>function myCounter() { let counter = 0; return function() { counter++; return counter; };}const add = myCounter();function myFunction(){ document.getElementById("demo").innerHTML = add();}</script></body></html>