1 Javascript Nested Lists

This collection is a complete guide to creating dynamic nested lists with JavaScript. At its core is the recursive rendering pattern, which builds HTML trees of any depth from a JSON structure. Interactivity (collapsing/expanding branches) is implemented through efficient event delegation that toggles CSS classes for smooth animations. Special focus is given to accessibility: scripts dynamically add the necessary ARIA attributes, making complex hierarchical structures understandable for assistive technologies.