Create 80.删除排序数组中的重复项 II.js

Author: yinxin630

80.删除排序数组中的重复项 II.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var removeDuplicates = function(nums) {
+    let i = -1;
+    let j = 0;
+    while (j < nums.length) {
+        if (nums[j] === nums[i] && nums[j] === nums[i - 1]) {
+            j++;
+            continue;
+        }
+        i++;
+        nums[i] = nums[j];
+        j++;
+    }
+    return i + 1;
+};