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<!DOCTYPE html>
<html>
<body>
​
<p>Click the button to add elements to the beginning of the array.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p id="demo"></p>
​
<script>
var fruits = ["Banana", "Orange", "Apple", "Mango"];
document.getElementById("demo").innerHTML = fruits;
​
function myFunction() {
  fruits.unshift("Lemon", "Pineapple");
  document.getElementById("demo").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>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_unshift by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:01:27 GMT -->
</html>
​
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