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web/src/utils/tools.js

@@ -3,7 +3,29 @@ import {mainStore} from "./store";
 export const getToken = () => mainStore()?.token
 export const $confirm = () => {
 
+}
+/**
+ * 数组转tree
+ * @param list 待转化的数组
+ * @param config 配置
+ */
+const $arr2tree = (list, config = {}) => {
+  const {key = 'id', parent = 'parentId', children = 'children'} = config, result = [], itemMap = {}, ids = list?.map(e => `${e[key]}`)?.toString()
+  for (const e of list) {
+    const id = e[key], pid = e[parent]
+    itemMap[id] = {...e, [children]: [itemMap[id]?.[children]].flat().filter(Boolean)}
+    const treeItem = itemMap[id]
+    if (!!pid && ids.indexOf(pid) > -1) {
+      if (!itemMap[pid]) {
+        itemMap[pid] = {
+          children: [],
+        }
+      }
+      itemMap[pid].children.push(treeItem)
+    } else result.push(treeItem)
+  }
+  return result
 }
 export default {
-  getToken, $confirm
-}
+  getToken, $confirm, $arr2tree
+}