feat: add typescript solution to lc problem: No.0119.Pascal's Triangle II (#523)

Author: zhaocchen

solution/0100-0199/0119.Pascal's Triangle II/README.md

@@ -64,6 +64,20 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function getRow(rowIndex: number): number[] {
+    let ans = new Array(rowIndex + 1).fill(1);
+    for (let i = 2; i < rowIndex + 1; ++i) {
+        for (let j = i -1; j > 0; --j) {
+            ans[j] += ans[j - 1];
+        }
+    }
+    return ans;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/0100-0199/0119.Pascal's Triangle II/README_EN.md

@@ -65,6 +65,20 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function getRow(rowIndex: number): number[] {
+    let ans = new Array(rowIndex + 1).fill(1);
+    for (let i = 2; i < rowIndex + 1; ++i) {
+        for (let j = i -1; j > 0; --j) {
+            ans[j] += ans[j - 1];
+        }
+    }
+    return ans;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/0100-0199/0119.Pascal's Triangle II/Solution.ts

@@ -0,0 +1,9 @@
+function getRow(rowIndex: number): number[] {
+    let ans = new Array(rowIndex + 1).fill(1);
+    for (let i = 2; i < rowIndex + 1; ++i) {
+        for (let j = i -1; j > 0; --j) {
+            ans[j] += ans[j - 1];
+        }
+    }
+    return ans;
+};