jQuery inArray() Method

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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

ValueTypeExplanation
valueRequiredSpecifies a value to search for.
arrayRequiredSpecifies an array through which to search.
fromIndexOptionalSpecifies the index of the array at which to begin the search.
Default value of fromIndex is 0.

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