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On Select Change jQuery

Last Updated : Jul 19, 2023

On Select Change jQuery

In this article we will show you the solution of on select change jQuery, in the initial two variants, the method is a shorthand for.on("change", handler), and in the third, it is a shorthand for.trigger("change").

When a value changes, an element receives the change event.

Only input>, textarea>, and select> components are allowed to participate in this event.

When a user clicks on a pick box, a checkbox, or a radio button, the event is immediately dispatched; however, for other element types, the event is delayed till the element loses attention.

The alert now appears when the dropdown's second choice is chosen.

Moreover, it appears if you edit any text in the form and then click another button.

Nevertheless, the event is not initiated whereas if the field loses focus before the contents have changed.

Apply if you want to manually start the event. change() When an element's value changes (only applies to input, textarea, and select elements), the change event is triggered.

Change events are triggered via the change() method, which also attaches a function that will be called when a change event happens.

An option's selection triggers a change event for some menus. Because when the field loses focus after content has been modified, the change event in text fields and text areas takes place.

Step By Step Guide On On Select Change jQuery :-

<html lang="en">
<head>
  <meta charset="utf-8">
  <title>talkerscode demo</title>
  <style>
  div {
    color: red;
  }
  </style>
  <script src="https://code.jquery.com/jquery-3.6.3.js"></script>
</head>
<body>
<select name="sweets" multiple="multiple">
  <option>Chocolate</option>
  <option selected="selected">Candy</option>
  <option>Taffy</option>
  <option selected="selected">Caramel</option>
  <option>Fudge</option>
  <option>Cookie</option>
</select>
<div></div>
<script>
$( "select" )
  .change(function () {
    var str = "";
    $( "select option:selected" ).each(function() {
      str += $( this ).text() + " ";
    });
    $( "div" ).text( str );
  })
  .change();
</script>
</body>
</html>
  1. The first step is to write <HTML>, which tells the browser what version of HTML we're using. A tag is the first element of an HTML document.
  2. Use the <head> tag to describe the project's heading. In contrast to the final brackets, which are closed, the title and final brackets both are open. External style sheets, also known as step-by-step style sheets, appear on a webpage based on the URL or path.
  3. Next, we create the font size and weight in style.
  4. Then we style by closing our eyes.
  5. The <script> tag was then added. The script tag also includes the javascript google API run or an explanation of the code or file we used.
  6. The script is then closed and also head close.
  7. The <body> tag, which describes the webpage's body, is then placed after this. This is where the website's content is written.
  8. Then we create a dropdown using select and option. Under that we define sweet values.
  9. Then we again opened the <script> tag and then added. The script tag also includes the javascript google API run or an explanation of the code or file we used.
  10. The script is then closed.
  11. After that we close program using</body></html>

Conclusion :-

JQuery includes a function called change that you can use if you want to do an action whenever one of your input fields changes().

When an element's value changes (only applies to input, textarea, and select elements), the change event is triggered.

The change() method adds a function that run whenever a change event happens or initiates the change event.

I hope this article on on select change jQuery helps you and the steps and method mentioned above are easy to follow and implement.

Author Image About Riya

A recent graduate with a Bachelor of Technology (B.Tech) in Computer Science from India. She is passionate about leveraging technology to solve real-world problems. With a strong foundation and experience in programming languages such as Python, Django, HTML, CSS, and JavaScript, java, php and have honed her skills through hands-on projects and coursework.

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