<html><body><p id="demo">Click the button to add elements to the array.</p><button onclick="myFunction()">Try it</button><script>function myFunction(){var fruits = ["Banana", "Orange", "Apple", "Mango"];fruits.unshift("Lemon","Pineapple");var x=document.getElementById("demo");x.innerHTML=fruits;}</script><p><b>Note:</b> The unshift() method does not work properly in Internet Explorer 8 and earlier, the values will be inserted, but the return value will be <em>undefined</em>.</p></body></html>