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<!DOCTYPE html>
<html>
<body>
<p id="demo"></p>
<script>
var myObject, myArray;
function myFunction(a, b) {
  return a * b;
}
myArray = [10, 2]
myObject = myFunction.apply(myObject, myArray);    // Will return 20 
document.getElementById("demo").innerHTML = myObject; 
</script>
</body>
</html>