From 93f29ed6d5cce50ccaf057a8a3177318c105b344 Mon Sep 17 00:00:00 2001
From: jerryfishcode <91447694+jerryfishcode@users.noreply.github.com>
Date: Mon, 27 Sep 2021 20:55:52 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=20205.=20=E5=90=8C=E6=9E=84?=
 =?UTF-8?q?=E5=AD=97=E7=AC=A6=E4=B8=B2=20JavaScript=E8=A7=A3=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 problems/0205.同构字符串.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/problems/0205.同构字符串.md b/problems/0205.同构字符串.md
index 5d20aa4a..1b4d0e32 100644
--- a/problems/0205.同构字符串.md
+++ b/problems/0205.同构字符串.md
@@ -119,6 +119,25 @@ func isIsomorphic(s string, t string) bool {
 ## JavaScript
 
 ```js
+var isIsomorphic = function(s, t) {
+    let len = s.length;
+    if(len === 0) return true;
+    let maps = new Map();
+    let mapt = new Map();
+    for(let i = 0, j = 0; i < len; i++, j++){
+        if(!maps.has(s[i])){
+            maps.set(s[i],t[j]);// maps保存 s[i] 到 t[j]的映射
+        } 
+        if(!mapt.has(t[i])){
+            mapt.set(t[j],s[i]);// mapt保存 t[j] 到 s[i]的映射
+        }
+        // 无法映射，返回 false
+        if(maps.get(s[i]) !== t[j] || mapt.get(t[j]) !== s[i]){
+            return false;
+        }
+    };
+    return true;
+};
 ```
 
 -----------------------