26.remove-duplicates-from-sorted-array.js

/*
 * @lc app=leetcode id=26 lang=javascript
 *
 * [26] Remove Duplicates from Sorted Array
 */

// @lc code=start
/**
 * @param {number[]} nums
 * @return {number}
 */
 var removeDuplicates = function(nums) {
  let i = 0;
  for (let j = 0; j < nums.length; j++) {
      if (nums[j] != nums[i]) 
          nums[++i] = nums[j];
  }
  return ++i;
};

// var removeDuplicates = function(nums) {
//   nums.splice(0, nums.length, ...(new Set(nums)));
// };
// @lc code=end