diff --git a/solution/0100-0199/0191.Number of 1 Bits/README.md b/solution/0100-0199/0191.Number of 1 Bits/README.md
index c03082bedcaca..0f524973f5e9a 100644
--- a/solution/0100-0199/0191.Number of 1 Bits/README.md	
+++ b/solution/0100-0199/0191.Number of 1 Bits/README.md	
@@ -261,6 +261,23 @@ int hammingWeight(uint32_t n) {
 }
 ```
 
+### **Typescript**
+
+```ts
+
+function hammingWeight(n: number): number {
+    let cnt: number = 0;
+
+    while (n !== 0) {
+        cnt++;
+        n &= (n - 1);
+    }
+
+    return cnt;
+}
+
+```
+
 ### **...**
 
 ```
diff --git a/solution/0100-0199/0191.Number of 1 Bits/README_EN.md b/solution/0100-0199/0191.Number of 1 Bits/README_EN.md
index ba6eaa3c8bad9..b85811a2e71f9 100644
--- a/solution/0100-0199/0191.Number of 1 Bits/README_EN.md	
+++ b/solution/0100-0199/0191.Number of 1 Bits/README_EN.md	
@@ -211,6 +211,23 @@ int hammingWeight(uint32_t n) {
 }
 ```
 
+### **Typescript**
+
+```ts
+
+function hammingWeight(n: number): number {
+    let cnt: number = 0;
+
+    while (n !== 0) {
+        cnt++;
+        n &= (n - 1);
+    }
+
+    return cnt;
+}
+
+```
+
 ### **...**
 
 ```
diff --git a/solution/0100-0199/0191.Number of 1 Bits/solution.ts b/solution/0100-0199/0191.Number of 1 Bits/solution.ts
new file mode 100644
index 0000000000000..dca34ad4f252f
--- /dev/null
+++ b/solution/0100-0199/0191.Number of 1 Bits/solution.ts	
@@ -0,0 +1,10 @@
+function hammingWeight(n: number): number {
+    let cnt: number = 0;
+
+    while (n !== 0) {
+        cnt++;
+        n &= (n - 1);
+    }
+
+    return cnt;
+}
\ No newline at end of file