Update TwoSum.js

jichuangwei · web-flow · commit 7afb00fe8c71 · 2018-04-12T16:51:55.000+08:00
diff --git a/algorithms/TwoSum.js b/algorithms/TwoSum.js
@@ -9,7 +9,7 @@ var twoSum = function(nums, target) {
         if (temp[target - nums[i]] !== undefined) {
             return [temp[target - nums[i]], i];
         }
-        if (!temp[nums[i]]) {
+        if (temp[nums[i]] === undefined) {
             temp[nums[i]] = i;
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -9,7 +9,7 @@ var twoSum = function(nums, target) {`
`9`	`9`	`if (temp[target - nums[i]] !== undefined) {`
`10`	`10`	`return [temp[target - nums[i]], i];`
`11`	`11`	`}`
`12`		`- if (!temp[nums[i]]) {`
	`12`	`+ if (temp[nums[i]] === undefined) {`
`13`	`13`	`temp[nums[i]] = i;`
`14`	`14`	`}`
`15`	`15`	`}`