1var ob1;
2
3class TwoPointers{
4    removeDuplicates(nums,N) {
5        if (N === 0 || N === 1) {
6            return N;
7        }
8
9        let i = 0;
10        for (let j = 1; j < nums.length; j++) {
11            if (nums[j] != nums[i]) {
12                i++;
13                nums[i] = nums[j];
14            }
15        }
16        let a = i+1;
17        var newarr = new Array(a);
18        for (let z=0;z<a;z++){
19            newarr[z]=nums[z];
20        }
21        return newarr
22    }
23}
24
25function tests() {
26    var assert = require('assert').strict;
27    let pass = 0;
28
29    ob1 = new TwoPointers();
30    nums1=[2,3,4,4,5,6,6,6,7,8,8];
31    nums2=[1,1,2,3,4,4,5,6,6,7,8,9,9];
32    nums3=[2,4,4,6,8,10,10];
33
34
35
36    try {
37        assert.deepStrictEqual(ob1.removeDuplicates(nums1, nums1.length), [2, 3, 4, 5, 6, 7, 8]);
38        console.log( 'Test1 - PASSED ');
39        pass += 1;
40    } catch (err) {
41        console.log(err);
42    }
43
44    try {
45        assert.deepStrictEqual(ob1.removeDuplicates(nums2, nums2.length), [1, 2, 3, 4, 5, 6, 7, 8, 9]);
46        console.log( 'Test2 - PASSED ');
47        pass += 1;
48    } catch (err) {
49        console.log(err);
50    }
51
52    try {
53        assert.deepStrictEqual(ob1.removeDuplicates(nums3, nums3.length), [2,4,6,8,10]);
54        console.log( 'Test3 - PASSED ');
55        pass += 1;
56    } catch (err) {
57        console.log(err);
58    }
59
60    
61    switch (pass) {
62        case 0:
63            console.log("FAILED: 0/3 tests Passed.");
64            break;
65        case 1:
66            console.log("FAILED: 1/3 tests Passed.");
67            break;
68        case 2:
69            console.log("FAILED: 2/3 tests Passed.");
70            break;
71        case 3:
72            console.log("Nice job, 3/3 tests passed!");
73            break;
74    }
75}
76tests();