feat: add typescript solution to lc problem: No.0657

No.0657.Robot Return to Origin

Author: zhaocchen

solution/0600-0699/0657.Robot Return to Origin/README.md

@@ -72,6 +72,26 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function judgeCircle(moves: string): boolean {
+    let x = 0, y = 0;
+    const dir = {
+        R: [1, 0],
+        L: [-1, 0],
+        U: [0, 1],
+        D: [0, -1]
+    };
+    for (let u of moves) {
+        const [dx, dy] = dir[u];
+        x += dx;
+        y += dy;
+    }
+    return !x && !y;
+};
+```
+
 ### **...**
 
 ```

solution/0600-0699/0657.Robot Return to Origin/README_EN.md

@@ -89,6 +89,26 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function judgeCircle(moves: string): boolean {
+    let x = 0, y = 0;
+    const dir = {
+        R: [1, 0],
+        L: [-1, 0],
+        U: [0, 1],
+        D: [0, -1]
+    };
+    for (let u of moves) {
+        const [dx, dy] = dir[u];
+        x += dx;
+        y += dy;
+    }
+    return !x && !y;
+};
+```
+
 ### **...**
 
 ```

solution/0600-0699/0657.Robot Return to Origin/Solution.ts

@@ -0,0 +1,15 @@
+function judgeCircle(moves: string): boolean {
+    let x = 0, y = 0;
+    const dir = {
+        R: [1, 0],
+        L: [-1, 0],
+        U: [0, 1],
+        D: [0, -1]
+    };
+    for (let u of moves) {
+        const [dx, dy] = dir[u];
+        x += dx;
+        y += dy;
+    }
+    return !x && !y;
+};