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<!DOCTYPE html>
<html>
<body>
​
<h2>JavaScript Functions</h2>
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<p>Accessing a function without () will return the function definition instead of the function result:</p>
<p id="demo"></p>
​
<script>
function toCelsius(f) {
  return (5/9) * (f-32);
}
document.getElementById("demo").innerHTML = toCelsius;
</script>
​
</body>
</html>
​