Salesforce JavaScript Developer Practice Exam

The result of using the `map` function with the provided code is that it takes each element of the original array and applies the function that doubles its value. The `map` method creates a new array populated with the results of calling the provided function (in this case, `x => x * 2`) on every element in the array.

Given the original array `[1, 4, 9, 16]`, let's walk through how the `map` function processes each element:

1. For the first element `1`:

- The function doubles this value, resulting in `2`.

2. For the second element `4`:

- The function doubles this value, resulting in `8`.

3. For the third element `9`:

- The function doubles this value, resulting in `18`.

4. For the fourth element `16`:

- The function doubles this value, resulting in `32`.

Thus, after processing all elements of the original array, the resulting new array will be `[2, 8, 18, 32]`. This is why the correct answer is indeed the one that reflects this transformation. The reasoning clearly follows the use of the `map` function in