feat: 添加菜单树结构事例

src/utils/tree.ts

@@ -0,0 +1,42 @@
+/**
+ * 提取菜单树中的每一项path
+ * @param {Object} {menuTree 菜单树}
+ * @param {return}} expandedPaths 每一项path组成的数组
+ */
+const expandedPaths = [];
+export function extractPathList(menuTree) {
+  if (!Array.isArray(menuTree)) {
+    console.warn("menuTree must be an array");
+    return;
+  }
+  if (!menuTree || menuTree.length === 0) return;
+  for (const node of menuTree) {
+    const hasChildren = node.children && node.children.length > 0;
+    if (hasChildren) {
+      extractPathList(node.children);
+    }
+    expandedPaths.push(node.path);
+  }
+  return expandedPaths;
+}
+
+/**
+ * 如果父级下children的length为1，删除children
+ * @param {Object} {menuTree 菜单树}
+ * @param {return}}
+ */
+export function deleteChildren(menuTree) {
+  if (!Array.isArray(menuTree)) {
+    console.warn("menuTree must be an array");
+    return;
+  }
+  if (!menuTree || menuTree.length === 0) return;
+  for (const node of menuTree) {
+    if (node.children && node.children.length === 1) delete node.children;
+    const hasChildren = node.children && node.children.length > 0;
+    if (hasChildren) {
+      deleteChildren(node.children);
+    }
+  }
+  return menuTree;
+}