From 8f7353cf2fdf327b684aac81ecf67745b653b949 Mon Sep 17 00:00:00 2001
From: Qi Jia <13632059+jackeyjia@users.noreply.github.com>
Date: Wed, 7 Jul 2021 20:04:46 -0700
Subject: [PATCH] add js solution for wordBreak

---
 problems/0139.单词拆分.md | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/problems/0139.单词拆分.md b/problems/0139.单词拆分.md
index b6a6242e..59892ef9 100644
--- a/problems/0139.单词拆分.md
+++ b/problems/0139.单词拆分.md
@@ -291,6 +291,27 @@ func wordBreak(s string,wordDict []string) bool  {
 }
 ```
 
+Javascript：
+```javascript
+const wordBreak = (s, wordDict) => {
+
+    let dp = Array(s.length + 1).fill(false);
+    dp[0] = true;
+
+    for(let i = 0; i <= s.length; i++){
+        for(let j = 0; j < wordDict.length; j++) {
+            if(i >= wordDict[j].length) {
+                if(s.slice(i - wordDict[j].length, i) === wordDict[j] && dp[i - wordDict[j].length]) {
+                    dp[i] = true
+                }
+            }
+        }
+    }
+
+    return dp[s.length];
+}
+```
+
 
 
 -----------------------