twoSums first version

Author: mgable

twoSums.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[]} nums
+ * @param {number} target
+ * @return {number[]}
+ */
+var twoSum = function(nums, target) {
+    let cache = {}, index = 0
+    
+    while(nums.length){
+        let num = nums.shift(),
+            otherNum = target - num
+        if (cache[otherNum] !== undefined){
+            return [cache[otherNum], index]
+        }
+        cache[num] = index
+        index++
+    }
+};