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// jQuery widget pattern checklist: // [x] ARIA roles and attributes (role, aria-expanded, aria-label) // [x] Keyboard navigation (Enter/Space to activate, Escape to close) // [x] Focus management (trap in modal, restore on close) // [x] Event delegation (parent.on("click", ".child", fn)) // [x] Custom events ($.trigger("widget:action")) for extensibility // [x] Data storage ($(el).data("state")) for widget state // [x] $.fn.pluginName() pattern for reusable widgets
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