fix: issue #84 (#85)

* add two sum js

* add two sum js

* fix:  js semicolon #84

Co-authored-by: nick.huang <[email protected]>

Author: yaodehaung

javascript/_1.js

@@ -0,0 +1,16 @@
+// Two sum
+
+var twoSum = function(nums, target) {
+    var sum = {}
+    for( var i = 0 ; i < nums.length ; i++){
+
+          if(!sum.hasOwnProperty(target - nums[i])){
+             sum[nums[i]] = i;
+
+           }else{
+             return [i , sum[target-nums[i]] ]
+           }
+    }
+};
+
+console.log(twoSum([2,7,11,15],9));