# 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 选择数据已存储在指定的键下的元素。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .disableSelection() 禁用选择匹配的元素集合内的文本内容。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .enableSelection() 启用选择匹配的元素集合内的文本内容。 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() 异步聚焦到一个元素。 Also in: [Selectors](http://www.css88.com/jquery-ui-api/category/selectors/ "View all posts in Selectors") ## :focusable Selector 选择可被聚焦的元素。 ## jQuery.ui.keyCode 一个相对于数字值的关键代码描述的映射。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .removeUniqueId() 为匹配的元素集合移除由 .uniqueId() 设置的 Id。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .scrollParent() 获取最近的可滚动的祖先。 Also in: [Selectors](http://www.css88.com/jquery-ui-api/category/selectors/ "View all posts in Selectors") ## :tabbable Selector 选择用户可通过 tab 键聚焦的元素。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .uniqueId() 为匹配的元素集合生成并申请一个唯一的 Id。 Also in: [Methods](http://www.css88.com/jquery-ui-api/category/methods/ "View all posts in Methods") ## .zIndex() 为元素获取 z-index。