jQuery change() Method

jQuery | change() Method: Learn about the jQuery change() Method with its usages, syntax, and examples.
Submitted by Pratishtha Saxena, on October 19, 2022

change() Method

Events in jQuery are the actions that the user performs on the web page. It can be anything – related to mouse clicks, keyboard presses, etc. Using jQuery, we can control these events in the order we want and can also attach some custom functions to it if needed. That means, we can use predefined event methods for the actions and also define a function that gets fired when the event method is triggered. Overall, this makes the website more dynamic on the user's end. Let's learn about the change() method here.

The change() method is a built-in jQuery method. It helps to detect the change in the text of the input element or the text area. In other words, we can say that the change event gets triggered whenever the input text is changed by the user. Some kind of function can be attached to perform other tasks. This method generally works for the form fields, input, '<textarea>', etc.

change() Method Syntax

$('selector').change();
$('selector').change(function);

It takes one optional parameter – function. The function is the custom function that can be defined to do some tasks when this method gets triggered.

The below example shows how the change() method gets triggered when the input text is manipulated.

jQuery change() Method Example

<!DOCTYPE html>
<html>
  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
  </head>
  
  <body>
    <h2>jQuery Event - Select</h2>
    <p>Click the following button to select the input text.</p>
    <button>Select</button>
    <hr>
    <h4>Enter Day Name</h4>
    <label>Day: </label>
    <input type="text" value="Monday"><br><br>
    <hr>
    <h3></h3>
  </body>
  
  <script type="text/javascript">
    $(document).ready(function(){
        $('button').click(function(){
            $('input').select();
            $('h3').html('Input Text has been SELECTED.')
        });
    });
  </script>
</html>

Output:

Example 1: jQuery change() Method


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