feat: add typescript solution to lc problem: No.1470.Shuffle the Array

Author: zhaocchen

solution/1400-1499/1470.Shuffle the Array/README.md

@@ -79,6 +79,18 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function shuffle(nums: number[], n: number): number[] {
+    let ans = [];
+    for (let i = 0; i < n; i++) {
+        ans.push(nums[i], nums[n + i]);
+    }
+    return ans;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/1400-1499/1470.Shuffle the Array/README_EN.md

@@ -101,6 +101,18 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function shuffle(nums: number[], n: number): number[] {
+    let ans = [];
+    for (let i = 0; i < n; i++) {
+        ans.push(nums[i], nums[n + i]);
+    }
+    return ans;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/1400-1499/1470.Shuffle the Array/Solution.ts

@@ -0,0 +1,7 @@
+function shuffle(nums: number[], n: number): number[] {
+    let ans = [];
+    for (let i = 0; i < n; i++) {
+        ans.push(nums[i], nums[n + i]);
+    }
+    return ans;
+};