Merge pull request #1768 from wang2jun/master

增加 657. 机器人能否返回原点 TypeScript 版本代码

problems/0657.机器人能否返回原点.md

@@ -150,6 +150,37 @@ var judgeCircle = function(moves) {
 ```
 
 
+## TypeScript
+
+```ts
+var judgeCircle = function (moves) {
+  let x = 0
+  let y = 0
+  for (let i = 0; i < moves.length; i++) {
+    switch (moves[i]) {
+      case 'L': {
+        x--
+        break
+      }
+      case 'R': {
+        x++
+        break
+      }
+      case 'U': {
+        y--
+        break
+      }
+      case 'D': {
+        y++
+        break
+      }
+    }
+  }
+  return x === 0 && y === 0
+};
+```
+
+
 <p align="center">
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>