requirement completed

Javascript/twoSum.js

@@ -0,0 +1,19 @@
+// Two Sum Problem Solution in JavaScript
+var twoSum = function(nums, target) {
+    const numMap = new Map(); // Create a hashmap to store the numbers and their indices
+
+    for (let i = 0; i < nums.length; i++) {
+        const complement = target - nums[i]; // Find the complement
+
+        if (numMap.has(complement)) {
+            return [numMap.get(complement), i]; // Return the indices if complement exists in the map
+        }
+
+        numMap.set(nums[i], i); // Add the current number and its index to the map
+    }
+
+    throw new Error("No two sum solution found!");
+};
+
+// Example Usage:
+console.log(twoSum([2, 7, 11, 15], 9)); // Output: [0, 1]