Скачать или смотреть How to Use jQuery and JavaScript to Dynamically Select Items and Input Values

Learn how to implement a dynamic item selection feature with jQuery and JavaScript, enabling users to select options and confirm their choices effectively!
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This video is based on the question https://stackoverflow.com/q/68251163/ asked by the user 'WEI A' ( https://stackoverflow.com/u/15807056/ ) and on the answer https://stackoverflow.com/a/68251318/ provided by the user 'nay' ( https://stackoverflow.com/u/1933676/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introducting Item Selection in jQuery and JavaScript

As a beginner in programming, you might encounter various tasks that require you to manipulate user interface elements dynamically. A common requirement is to allow users to select items and then confirm their choices to populate an input box. This guide will guide you through creating a user-friendly interface where users can select items and either confirm or cancel their selection.

The Challenge

You want to achieve the following effects:

When a user clicks an input box, a selection window pops up.

Upon selecting an item, the item should highlight with a yellow background.

A confirm button should add the selected item to the input box while closing the selection window.

If the user clicks cancel, the input should remain unchanged, and the selection window should close.

With just a little jQuery and JavaScript, you can implement this functionality easily!

Setting Up Your Environment

Before diving into the code, ensure you have the following structure in your HTML:

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HTML Breakdown

Input Box: Where users will see their selected items.

Popup Window: Contains options separated into categories.

Buttons: Users can confirm or cancel their selection.

Implementing the jQuery Script

After setting up the HTML structure, the next step is to implement the jQuery logic to handle user interactions. Here's how to do it step-by-step:

Show the Selection Window

To show the selection window when a user clicks the input box, you can use:

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Selecting Items

Allow users to select items by toggling a class when they click an item. This will visually indicate which items are selected:

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

Confirming the Selection

To add the selected items to the input box upon confirmation, use the following code:

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

Canceling the Selection

To keep the original input value unchanged when the user clicks cancel, simply close the popup without performing any action:

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Completed Code

When you combine the above sections, your complete jQuery script looks like this:

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

CSS for Styling

Here’s a CSS snippet to add a bit of style to your popup:

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

Conclusion

Creating a user-friendly selection interface using jQuery and JavaScript is quite straightforward. By following the above steps, you can introduce interactivity that allows users to intuitively select and confirm their preferences without any hassle. Feel free to modify and enhance this example to fit your specific needs! Happy coding!