👀 Views: 497 💬 Answers: 1 📅 Created: 2025-09-06

jQuery AJAX Bootstrap modal JavaScript

I'm converting an old project and I've searched everywhere and can't find a clear answer... Building an application that showcases my design architecture skills, I find myself needing to dynamically render content based on user interactions. I’m using jQuery (version 3.6.0) alongside Bootstrap for styling. The requirement is to load additional project details into a modal when a user clicks on a project tile. Initially, I tried using `$.ajax()` to fetch data from a local JSON file, but I ran into issues with event delegation. Here’s the basic structure I started with: ```javascript $('.project-tile').on('click', function() { const projectId = $(this).data('id'); $.ajax({ url: `projects/${projectId}.json`, type: 'GET', success: function(data) { $('#projectModal .modal-body').html(data.description); $('#projectModal').modal('show'); }, error: function() { console.error('Failed to retrieve project details'); } }); }); ``` This worked initially, but as I added more dynamic tiles, I noticed that clicks on project tiles loaded old data, or sometimes nothing at all. I later discovered that I should be using event delegation more effectively with `$(document).on()`, particularly since new tiles could be appended to the DOM after the initial event binding. After refactoring, I updated the event binding like this: ```javascript $(document).on('click', '.project-tile', function() { const projectId = $(this).data('id'); $.ajax({ url: `projects/${projectId}.json`, type: 'GET', success: function(data) { $('#projectModal .modal-body').html(data.description); $('#projectModal').modal('show'); }, error: function() { console.error('Failed to retrieve project details'); } }); }); ``` This adjustment resolved some issues, but I'm still unsure about best practices for handling state when the modal opens multiple times. Should I clear the modal content before loading new data? I’m considering using `.empty()` or `.html('')` before setting new content. Does this affect performance or user experience in any significant way? Moreover, I aim to adhere to best practices for accessibility. Are there specific considerations or attributes I should include when dynamically loading content into the modal to ensure it's user-friendly for screen readers? I'm working on a service that needs to handle this. I'd really appreciate any guidance on this. Has anyone else encountered this? Thanks for your help in advance!