jQuery inArray() Method
jQuery inArray() Method
The jQuery inArray() method searches for a specified value within an array and return its index.
Note: This method returns -1 if the specified element not found.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery inArray() Method</h1>
<p>Click on the button and check your console.</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
var arr = [11, 12, 13, 14];
// If exist return index else -1
console.log($.inArray(12, arr));
console.log($.inArray(12, arr, 1));
console.log($.inArray(12, arr, 2));
console.log($.inArray(15, arr));
});
});
</script>
</body>
</html>
Syntax
$.inArray(value, array, fromIndex);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| value | Required | Specifies a value to search for. |
| array | Required | Specifies an array through which to search. |
| fromIndex | Optional | Specifies the index of the array at which to begin the search. Default value of fromIndex is 0. |
Reminder
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