two sum

Author: j2h30728

two-sum/j2h30728.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[]} nums
+ * @param {number} target
+ * @return {number[]}
+ */
+var twoSum = function (nums, target) {
+  const map = new Map();
+
+  for (let i = 0; i < nums.length; i++) {
+    const num = target - nums[i];
+    if (map.has(num)) {
+      return [map.get(num), i];
+    }
+    map.set(nums[i], i);
+  }
+
+  return [];
+};