From 8443ce69de5c4bde0d6945efe057bb0813c35f27 Mon Sep 17 00:00:00 2001
From: gongchen <v_cgong@digitalgd.com.cn>
Date: Wed, 8 Apr 2020 01:24:28 +0800
Subject: [PATCH] feat: mapChildren

---
 src/react/ReactChildren.js | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/react/ReactChildren.js b/src/react/ReactChildren.js
index bbc07d8..98291ed 100644
--- a/src/react/ReactChildren.js
+++ b/src/react/ReactChildren.js
@@ -1,6 +1,34 @@
 function mapChildren(children, func, context) {
     //TODO实现此mapChildren方法
-    return children;
+    if (!children) {
+        return []
+    }
+    let arr = [], idx = 0, key = ''
+    function fn(children) {
+        if (Array.isArray(children)) {
+            for (let i = 0; i < children.length; i++) {
+                let child = children[i];
+                child.key == null ?  key = `.${index}/$` : key = `.$${child.key}/.$`;
+                if (Array.isArray(child)) {
+                    fn(child);
+                } else {
+                    callback(child);
+                    idx++;
+                }
+            }
+        } else {
+            callback([children])
+        }
+    }
+    function callback(children) {
+        let o = func(children, idx);
+        for (let k = 0; k < o.length; k++) {
+            o[k].key = key + o[k].key;
+            arr.push(o[k])
+        }
+    }
+    fn(children);
+    return arr;
 }
 
 export {
-- 
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