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<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Arrays</h1>
<h2>The filter() Method</h2>
<p>Click "Test" to get every element in the array that has a value above this number:</p>
<p><input type="number" id="ageToCheck" value="30"></p>
<button onclick="myFunction()">Test</button>
<p id="demo"></p>
<script>
const ages = [32, 33, 12, 40];
function checkAge(age) {
  return age > document.getElementById("ageToCheck").value;
}
function myFunction() {
  document.getElementById("demo").innerHTML = ages.filter(checkAge);
}
</script>
</body>
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</html>