upd: Remove Duplicates from Sorted Array

Author: bt404

README.md

@@ -18,3 +18,4 @@ LeetCode JavaScript Solution
 | Palindrome Number | Easy | 2018-03-16 |
 | Remove Nth Node From End of List | Medium | 2018-03-16 |
 | Valid Parentheses | Easy | 2018-03-16 |
+| Remove Duplicates from Sorted Array | Easy | 2018-03-16 |

src/removeDuplicatesFromSortedArray.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var removeDuplicates = function(nums) {
+  let count = 0;
+  let temp = {};
+  let i = 0;
+  for (let i = 0; i < nums.length; ++i) {
+    if (temp[nums[i]]) {
+      ++count;
+    } else {
+      temp[nums[i]] = 1;
+      nums[i - count] = nums[i];
+    }
+  }
+  return nums.length - count;
+};