How to Get Multiple Selected CheckBox Values as Comma-Separated String using jQuery

Learn how to efficiently retrieve selected checkbox values and format them as a comma-separated string using jQuery. This guide provides a step-by-step guide to accomplish this task in your web projects.
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Checkboxes are commonly used in web forms to allow users to select multiple options. Often, you may need to retrieve the values of the selected checkboxes and process them further, such as submitting them via an AJAX request or performing client-side validation. In this guide, we'll explore how to use jQuery to get the values of multiple selected checkboxes and format them as a comma-separated string.

Step 1: HTML Markup

First, let's create a simple HTML form with checkboxes:

[[See Video to Reveal this Text or Code Snippet]]

In this example, we have a form with checkboxes for various fruits and a submit button.

Step 2: jQuery Code

Now, let's write jQuery code to handle the click event of the submit button and retrieve the selected checkbox values:

[[See Video to Reveal this Text or Code Snippet]]

Explanation:

We attach a click event handler to the submit button using jQuery's click() function.

Within the event handler function, we initialize an empty array selectedItems to store the values of selected checkboxes.

We use the each() function to iterate over each checked checkbox with the name "option" using the selector $('input[name="option"]:checked').

For each checked checkbox, we retrieve its value using $(this).val() and push it to the selectedItems array.

Finally, we use the join() function to concatenate the values of the selected checkboxes into a comma-separated string, which is stored in the selectedValues variable.

We display an alert containing the selected values for demonstration purposes. You can modify this part to suit your application's requirements.

Conclusion

In this guide, we learned how to use jQuery to efficiently retrieve the values of multiple selected checkboxes and format them as a comma-separated string. This technique can be useful in various web development scenarios where you need to process user-selected options.

Feel free to integrate this functionality into your web projects to enhance user experience and streamline data processing.