添加93.复原IP地址JavaScript·版本

Author: flames519

problems/0093.复原IP地址.md

@@ -338,6 +338,35 @@ class Solution(object):
         return ans```
 ```
 
+JavaScript： 
+
+```js
+/**
+ * @param {string} s
+ * @return {string[]}
+ */
+var restoreIpAddresses = function(s) {
+    const res = [], path = [];
+    backtracking(0, 0)
+    return res;
+    function backtracking(i) {
+        const len = path.length;
+        if(len > 4) return;
+        if(len === 4 && i === s.length) {
+            res.push(path.join("."));
+            return;
+        }
+        for(let j = i; j < s.length; j++) {
+            const str = s.substr(i, j - i + 1);
+            if(str.length > 3 || +str > 255) break;
+            if(str.length > 1 && str[0] === "0") break;
+            path.push(str);
+            backtracking(j + 1);
+            path.pop()
+        }
+    }
+};
+```
 
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 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)