diff --git a/DSA/Arrays/BubbleSort.js b/DSA/Arrays/BubbleSort.js
index c37a9d6..509e86e 100644
--- a/DSA/Arrays/BubbleSort.js
+++ b/DSA/Arrays/BubbleSort.js
@@ -1,4 +1,4 @@
-// Bubble sort Implementation using Javascript
+// Bubble sort Implementation using Javascript //code
   
  function bblSort(arr){
    
diff --git a/DSA/Strings/LargestOddNumber.js b/DSA/Strings/LargestOddNumber.js
new file mode 100644
index 0000000..720fd07
--- /dev/null
+++ b/DSA/Strings/LargestOddNumber.js
@@ -0,0 +1,30 @@
+// Javascript code for the above approach
+
+// returns a substring that contains the maximum odd number at its end
+function maxOdd(s) {
+	
+    // Loop through the string backwards, starting from the end
+    for (let i = s.length - 1; i >= 0; i--) {
+        
+    // Check if the current character is odd
+    if (parseInt(s.charAt(i)) % 2 !== 0) {
+        
+    // If it is, return the substring that contains
+    // all the characters up to and including the current character
+    return s.substring(0, i + 1);
+    }
+    }
+    
+    // If no odd number is found in the string, return an empty string
+    return '';
+    }
+    
+    // driver function
+    
+    const s = '504';
+    // function call
+    const ans = maxOdd(s);
+    console.log(ans);
+    
+    // This code is contributed by Vaibhav Nandan.
+    
\ No newline at end of file