What will be printed after executing the following code: const arr = [1, 2, 3]; arr.push(6); console.log(arr); arr.pop(); console.log(arr); arr.shift(); console.log(arr); arr.unshift(8); console.log(arr);?

What will be printed after executing the following code: const arr = [1, 2, 3]; arr.push(6); console.log(arr); arr.pop(); console.log(arr); arr.shift(); console.log(arr); arr.unshift(8); console.log(arr);?

• A. [1, 2, 3, 6]
• B. [2, 3]
• C. [8, 2, 3]
• D. [1, 2, 3, 6], [1, 2, 3], [2, 3], [8, 2, 3]

Answer: (D)

The code snippet executes several operations on the `arr` array, which initially contains the values `[1, 2, 3]`. 1. The first operation is `arr.push(6);`, which adds the value `6` to the end of the array. After this operation, the array becomes `[1, 2, 3, 6]`. The first `console.log(arr);` prints this modified array: `[1, 2, 3, 6]`. 2. Next, the code calls `arr.pop();`, which removes the last element from the array. After popping, the array goes back to its previous state of `[1, 2, 3]`. The second `console.log(arr);` outputs `[1, 2, 3]`. 3. The third operation, `arr.shift();`, removes the first element of the array. This shifts all remaining elements to the left, resulting in the array now being `[2, 3]`. The third `console.log(arr);` prints `[2, 3]`. 4. Finally, the code performs `arr.unshift(8);`, which adds the value `8` to the beginning of the array, transforming

The code snippet executes several operations on the arr array, which initially contains the values [1, 2, 3].

1. The first operation is arr.push(6);, which adds the value 6 to the end of the array. After this operation, the array becomes [1, 2, 3, 6]. The first console.log(arr); prints this modified array: [1, 2, 3, 6].

2. Next, the code calls arr.pop();, which removes the last element from the array. After popping, the array goes back to its previous state of [1, 2, 3]. The second console.log(arr); outputs [1, 2, 3].

3. The third operation, arr.shift();, removes the first element of the array. This shifts all remaining elements to the left, resulting in the array now being [2, 3]. The third console.log(arr); prints [2, 3].

4. Finally, the code performs arr.unshift(8);, which adds the value 8 to the beginning of the array, transforming