From 9df259f38eea3d35e684135cd6eb325d96c72fd0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B8=A9=E6=B5=A9=E6=98=8E?= <wenhaoming@ascs.tech>
Date: Tue, 7 Apr 2020 18:53:11 +0800
Subject: [PATCH] map

---
 src/react/ReactChildren.js | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/react/ReactChildren.js b/src/react/ReactChildren.js
index bbc07d8..6bacc18 100644
--- a/src/react/ReactChildren.js
+++ b/src/react/ReactChildren.js
@@ -1,6 +1,26 @@
-function mapChildren(children, func, context) {
+function mapChildren(reactChildren, func, context) {
     //TODO实现此mapChildren方法
-    return children;
+    if(!Array.isArray(reactChildren)) return reactChildren
+    let idx = 0
+
+    function invoke(reactChildren,func,idx){
+        reactChildren = reactChildren.reduce((pre,cur)=>{
+            if(Array.isArray(cur)){
+               let resultArr = invoke(cur,func,idx)
+               let tempArr =  [...pre,...resultArr]
+               idx += tempArr.length -1
+              return tempArr
+            }else if((typeof cur === 'object' && cur===null ) || typeof cur === 'undefined' ){
+                return pre
+            }else{
+                pre.push(func(cur,idx++) )
+            }
+            return pre
+        },[])
+        return reactChildren
+    }
+
+    return  invoke(reactChildren, func, idx);
 }
 
 export {
-- 
Gitee