feat: add typescript solution to lc problem: No.0392.Is Subsequence

Author: zhaocchen

solution/0300-0399/0392.Is Subsequence/README.md

@@ -89,6 +89,21 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function isSubsequence(s: string, t: string): boolean {
+    let m = s.length, n = t.length;
+    let i = 0;
+    for (let j = 0; j < n && i < m; ++j) {
+        if (s.charAt(i) == t.charAt(j)) {
+            ++i;
+        }
+    }
+    return i == m;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/0300-0399/0392.Is Subsequence/README_EN.md

@@ -64,6 +64,21 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function isSubsequence(s: string, t: string): boolean {
+    let m = s.length, n = t.length;
+    let i = 0;
+    for (let j = 0; j < n && i < m; ++j) {
+        if (s.charAt(i) == t.charAt(j)) {
+            ++i;
+        }
+    }
+    return i == m;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/0300-0399/0392.Is Subsequence/Solution.ts

@@ -0,0 +1,10 @@
+function isSubsequence(s: string, t: string): boolean {
+    let m = s.length, n = t.length;
+    let i = 0;
+    for (let j = 0; j < n && i < m; ++j) {
+        if (s.charAt(i) == t.charAt(j)) {
+            ++i;
+        }
+    }
+    return i == m;
+};