add: 26.Remove Duplicates from Sorted Array

Author: hijiangtao

README.md

@@ -2,7 +2,7 @@
 
 This is the solution collection of my LeetCode problems, most of them are programmed in JavaScript.
 
-Progress: 18/
+Progress: 20/
 
 | ID | Title | Solution | Difficulty |
 |---| ----- | -------- | ---------- |
@@ -11,6 +11,7 @@ Progress: 18/
 |7|[Reverse Integer](https://leetcode.com/problems/reverse-integer/) | [JavaScript](./src/reverse-integer/res.js)|Easy|
 |13|[Roman to Integer](https://leetcode.com/problems/roman-to-integer/) | [JavaScript](./src/roman-to-integer/res.js)|Easy|
 |22|[Generate Parentheses](https://leetcode.com/problems/generate-parentheses/) | [JavaScript](./src/generate-parentheses/res.js)|Medium|
+|26|[Remove Duplicates from Sorted Array](https://leetcode.com/problems/remove-duplicates-from-sorted-array/) | [JavaScript](./src/remove-duplicates-from-sorted-array/res.js)|Easy|
 |66|[Plus One](https://leetcode.com/problems/plus-one/) | [JavaScript](./src/plus-one/res.js)|Easy|
 |69|[Sqrt(x)](https://leetcode.com/problems/sqrtx/) | [JavaScript](./src/sqrtx/res.js)|Easy|
 |175|[Combine Two Tables](https://leetcode.com/problems/combine-two-tables/)| [SQL](./src/combine-two-tables/res.txt)|Easy|

src/remove-duplicates-from-sorted-array/res.js

@@ -0,0 +1,28 @@
+/**
+ * res.js
+ * @authors Joe Jiang (hijiangtao@gmail.com)
+ * @date    2017-02-23 13:59:15
+ * @version $Id$
+ */
+
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+let removeDuplicates = function(nums) {
+    let arrlen = nums.length,
+    	curInd = 0;
+
+    if (arrlen < 2) {
+    	return nums;
+    }
+
+    for (let i=1; i<arrlen; i++) {
+    	if ( nums[curInd] !== nums[i] ) {
+    		curInd++;
+    		nums[curInd] = nums[i];
+    	}
+    }
+
+    return curInd+1;
+};