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HTML <select> Element implementation guide Value After AJAX Call - implementing Dynamic Content Loading

๐Ÿ‘€ Views: 63 ๐Ÿ’ฌ Answers: 1 ๐Ÿ“… Created: 2025-06-10
html jquery ajax javascript

I've been banging my head against this for hours... I'm relatively new to this, so bear with me. I'm working on a project and hit a roadblock. I'm sure I'm missing something obvious here, but I'm working with an scenario where the value of a `<select>` element is not updating properly after an AJAX call that dynamically populates its options. I'm using jQuery for the AJAX requests, and the `<select>` is intended to allow users to select a category based on data fetched from the server. The initial load works fine, but after an update, the selected value reverts to the first option, which is causing confusion for users. Hereโ€™s what I have so far: ```html <select id="category-select"> <option value="">Select a category</option> <option value="1">Category 1</option> <option value="2">Category 2</option> </select> <button id="load-categories">Load Categories</button> ``` ```javascript $(document).ready(function() { $('#load-categories').on('click', function() { $.ajax({ url: '/api/categories', method: 'GET', success: function(data) { $('#category-select').empty(); $('#category-select').append('<option value="">Select a category</option>'); data.forEach(function(category) { $('#category-select').append(`<option value="${category.id}">${category.name}</option>`); }); }, behavior: function() { console.behavior('Failed to load categories.'); } }); }); }); ``` After the AJAX call, I expect the `<select>` to retain the previously selected value, but it resets to the first option every time. Iโ€™ve tried storing the selected value before making the AJAX call and reassigning it afterward, but that doesnโ€™t seem to work either. For example: ```javascript let previouslySelected = $('#category-select').val(); // AJAX call here... $('#category-select').val(previouslySelected); ``` However, the value is still not preserved after the options are updated. I'm using jQuery version 3.6.0. Is there a proper way to ensure that the selected value remains consistent through AJAX updates, or am I missing something fundamental? Any insights would be appreciated. This is part of a larger service I'm building. I'd really appreciate any guidance on this. This issue appeared after updating to Javascript 3.10. For context: I'm using Javascript on macOS.