Javascript favorite star toggling

An excellent illustration is the star icon located on the left side of this post.

You have the ability to click on it to save this message as a favorite and click again to remove the flag.

I have already set up a page /favorites/add/{post_id}/, but I am unsure how to handle it with Ajax.

There are several tasks to complete:

  • Ensure that it functions properly when clicked
  • Update the image
  • Adjust the link based on whether it is for adding or removing the flag

I'm certain that such functionality already exists, however, my searches have been unsuccessful in locating it.

Any suggestions?

Answer №1

To implement functionality in JavaScript, you can attach an event handler to the icon that triggers on the onclick event.

Simply modify the src attribute of the img element to switch it to the appropriate image when needed.

A better approach would be to send a notification to the server, which will then respond with the correct image to display. Afterwards, you can update the src attribute of the img element accordingly.

The rationale behind placing the business logic on the server is to guarantee accurate results even if there are inconsistencies or errors with the database. This ensures that the image displayed reflects the true state of the data, regardless of any issues that may arise.

Answer №2

Which JavaScript library do you prefer? You may want to explore jQuery

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