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20220330_Vote/Ewide.Web.Entry/wwwroot/lib/xe-utils/mapTree.js

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+var helperCreateTreeFunc = require('./helperCreateTreeFunc')
+
+var map = require('./map')
+
+function mapTreeItem (parent, obj, iterate, context, path, node, parseChildren, opts) {
+  var paths, nodes, rest
+  var mapChildren = opts.mapChildren || parseChildren
+  return map(obj, function (item, index) {
+    paths = path.concat(['' + index])
+    nodes = node.concat([item])
+    rest = iterate.call(context, item, index, obj, paths, parent, nodes)
+    if (rest && item && parseChildren && item[parseChildren]) {
+      rest[mapChildren] = mapTreeItem(item, item[parseChildren], iterate, context, paths, nodes, parseChildren, opts)
+    }
+    return rest
+  })
+}
+
+/**
+  * 从树结构中指定方法后的返回值组成的新数组
+  *
+  * @param {Object} obj 对象/数组
+  * @param {Function} iterate(item, index, items, path, parent, nodes) 回调
+  * @param {Object} options {children: 'children'}
+  * @param {Object} context 上下文
+  * @return {Object/Array}
+  */
+var mapTree = helperCreateTreeFunc(mapTreeItem)
+
+module.exports = mapTree