diff --git a/problems/0344.反转字符串.md b/problems/0344.反转字符串.md
index 9176c915..f788beb1 100644
--- a/problems/0344.反转字符串.md
+++ b/problems/0344.反转字符串.md
@@ -200,6 +200,27 @@ var reverseString = function(s) {
 };
 ```
 
+TypeScript：
+
+```typescript
+/**
+ Do not return anything, modify s in-place instead.
+ */
+function reverseString(s: string[]): void {
+    let length: number = s.length;
+    let left: number = 0,
+        right: number = length - 1;
+    let tempStr: string;
+    while (left < right) {
+        tempStr = s[left];
+        s[left] = s[right];
+        s[right] = tempStr;
+        left++;
+        right--;
+    }
+};
+```
+
 Swift:
 
 ```swift
diff --git a/problems/0541.反转字符串II.md b/problems/0541.反转字符串II.md
index fb92b1e4..77558663 100644
--- a/problems/0541.反转字符串II.md
+++ b/problems/0541.反转字符串II.md
@@ -252,6 +252,28 @@ var reverseStr = function(s, k) {
 
 ```
 
+TypeScript：
+
+```typescript
+function reverseStr(s: string, k: number): string {
+    let left: number, right: number;
+    let arr: string[] = s.split('');
+    let temp: string;
+    for (let i = 0, length = arr.length; i < length; i += 2 * k) {
+        left = i;
+        right = (i + k - 1) >= length ? length - 1 : i + k - 1;
+        while (left < right) {
+            temp = arr[left];
+            arr[left] = arr[right];
+            arr[right] = temp;
+            left++;
+            right--;
+        }
+    }
+    return arr.join('');
+};
+```
+
 Swift:
 
 ```swift
diff --git a/problems/剑指Offer05.替换空格.md b/problems/剑指Offer05.替换空格.md
index d0f382c8..530545fb 100644
--- a/problems/剑指Offer05.替换空格.md
+++ b/problems/剑指Offer05.替换空格.md
@@ -298,6 +298,33 @@ javaScript:
 };
 ```
 
+TypeScript：
+
+```typescript
+function replaceSpace(s: string): string {
+    let arr: string[] = s.split('');
+    let spaceNum: number = 0;
+    let oldLength: number = arr.length;
+    for (let i = 0; i < oldLength; i++) {
+        if (arr[i] === ' ') {
+            spaceNum++;
+        }
+    }
+    arr.length = oldLength + 2 * spaceNum;
+    let cur: number = oldLength - 1;
+    for (let i = arr.length - 1; i >= 0; i--, cur--) {
+        if (arr[cur] !== ' ') {
+            arr[i] = arr[cur]
+        } else {
+            arr[i] = '0';
+            arr[--i] = '2';
+            arr[--i] = '%';
+        }
+    }
+    return arr.join('');
+};
+```
+
 Swift:
 
 ```swift