# UI Core 由 jquery.ui.core.js 提供的功能。 Also in: [Selectors](http://www.css88.com/jquery-ui-api/category/selectors/ "View all posts in Selectors") ## :data() Selector 選擇數據已存儲在指定的鍵下的元素。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .disableSelection() 禁用選擇匹配的元素集合內的文本內容。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .enableSelection() 啟用選擇匹配的元素集合內的文本內容。 Also in: [Method Overrides](http://www.css88.com/jquery-ui-api/category/overrides/ "View all posts in Method Overrides") | [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .focus() 異步聚焦到一個元素。 Also in: [Selectors](http://www.css88.com/jquery-ui-api/category/selectors/ "View all posts in Selectors") ## :focusable Selector 選擇可被聚焦的元素。 ## jQuery.ui.keyCode 一個相對于數字值的關鍵代碼描述的映射。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .removeUniqueId() 為匹配的元素集合移除由 .uniqueId() 設置的 Id。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .scrollParent() 獲取最近的可滾動的祖先。 Also in: [Selectors](http://www.css88.com/jquery-ui-api/category/selectors/ "View all posts in Selectors") ## :tabbable Selector 選擇用戶可通過 tab 鍵聚焦的元素。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .uniqueId() 為匹配的元素集合生成并申請一個唯一的 Id。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .zIndex() 為元素獲取 z-index。