JavaScript TypedArray indexOf() Method

The JavaScript indexof() Method is used to find the index of the element provided as the argument to the function.

The indexof() method is case sensitive.

Syntax:

Parameters:

Value: Value to be search in the index.

Start: Default 0. At which position to start the search.

Return value:

It returns the index of the search element. If the element cannot to be found in the array, this method returns -1.

Browser Support:

Chrome	Yes
Edge	Yes
Firefox	Yes
Opera	Yes

Example 1

JavaScript TypedArray indexOf() Method

<script type="text/javascript">
// JavaScript to illustrate indexOf() method
  function JavaTpoint() {
    var array = [2,3,5,4,6,7,8,9,12];
 
    document.write(array.indexOf(6, 5));
}
JavaTpoint();
// expected output: arr[Output:-1]
</script> 

Test it Now

Output:

-1

Example 2

JavaScript TypedArray indexOf() Method

<script type="text/javascript">
// JavaScript to illustrate indexOf() method
  function JavaTpoint() {
    var array = [2,3,5,4,6,7,8,9,12];
 
    document.write(array.indexOf(6, 2));
}
JavaTpoint();
// expected output: arr[Output:4]
</script> 

Test it Now

Output:

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