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<!DOCTYPE html>
<html>
<body>
​
<p>Click the button to display the first position of the element "Apple", starting the search at position 4:</p>
​
<button onclick="myFunction()">Try it</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var fruits = ["Banana", "Orange", "Apple", "Mango", "Banana", "Orange", "Apple", "Mango"];
  var a = fruits.indexOf("Apple", 4);
  document.getElementById("demo").innerHTML = a;
}
</script>
​
<p><b>Note:</b> The indexOf method was introduced in JavaScript 1.6, and does not work in Internet Explorer 8 and earlier versions.</p>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_indexof_array2 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 05 Jun 2019 14:01:55 GMT -->
</html>
​
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