jQuery ajax() Method

jQuery inArray() method

Last Updated : 31 Jul, 2024

This inArray() Method in jQuery is used to search for a specific value in an array and return its index (or -1 if not found).

Syntax

jQuery.inArray(val, arr [, Index])

Parameters

The inArray() method accepts three parameters that are described below:

val: The value to search in an array.
arr: Any array like object.
Index: Index of the array from which to begin search.

Return Value

It returns the index of element in an array, or -1 if element not found.

Example 1: In this example, the inArray() method searches an element 30 in the array.

HTML

<!DOCTYPE HTML>
<html>

<head>
    <title>
        jQuery inArray() Method
    </title>

    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js">
    </script>
</head>

<body>
    <script>
        let arr = [10, 20, 30, 40, 50, 60];
        let val = 30;

        let index = $.inArray(val, arr);

        console.log(index);
    </script>
</body>

</html>

Console Output:

Example 2: In this example, the inArray() method searches an element 30 in the array. The index attribute is also passed to search the element from index 3 and return -1.

HTML

<!DOCTYPE HTML>
<html>

<head>
    <title>
        jQuery inArray() Method
    </title>

    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js">
    </script>
</head>

<body>
    <script>
        let arr = [10, 20, 30, 40, 50, 60];
        let val = 30;

        let index = $.inArray(val, arr, 3);

        console.log(index);
    </script>
</body>

</html>

Output:

-1

jQuery ajax() Method

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PranchalKatiyar

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