Function selectMenu

examples/js/sidebar.js:252–263

(id, length)

//只处理三层节点,后续可优化
function selectMenu(id, length) {
    var target = _getTarget(id, length);
    if (length !== 1) {
        //控制editor页面左侧导航栏一级菜单高亮
        _selectTarget(target.parent().parent().parent().parent());
        //控制示例页面左侧导航栏一级菜单高亮
        _selectTarget(target.parent().parent());
        //控制左侧导航栏最低级菜单高亮
        _selectTarget(target.parent());
        _selectTarget(target.find("ul"));
    }
}

function _getTarget(id, length) {
    var target;