What will the output be for this code? const numbers = [1, 2, 3]; numbers.push(4); console.log(numbers);

The output of the code will indeed be [1, 2, 3, 4]. This is because the code initializes an array called numbers with three elements: 1, 2, and 3. The push method is then called on this array to add a new element, which is 4. The push method modifies the original array by appending the specified element to its end.

After the push operation, the numbers array now contains four elements: 1, 2, 3, and 4. When console.log(numbers) is executed, it outputs the updated array with all its current elements, resulting in [1, 2, 3, 4].

The other options do not accurately reflect what occurs in the code. The array is initialized properly, and the push method is valid for an array, meaning there will be no errors related to accessing properties of undefined. This confirms that the correct output is indeed [1, 2, 3, 4].