Salesforce JavaScript Developer Practice Exam

What does the method element in logArrayElements function display as the output?

1. a[0] = 2, a[1] = 5, a[2] = 9

2. a[0] = 1, a[1] = 4, a[2] = 9

3. 2, 5, 9

4. No output

The correct answer is: a[0] = 2, a[1] = 5, a[2] = 9

The method in the logArrayElements function is designed to iterate over an array and format the output by displaying the index alongside the corresponding value in the array. When the function runs, it accesses each element in the array, appending its index and value to a formatted string. For instance, if the array is defined as `a = [2, 5, 9]`, the output will feature each index followed by its respective value. The format used here is `a[index] = value`, resulting in: - For the first element (index 0), it outputs `a[0] = 2`. - For the second element (index 1), it outputs `a[1] = 5`. - For the third element (index 2), it outputs `a[2] = 9`. When compiled together, the complete output reflects as `a[0] = 2, a[1] = 5, a[2] = 9`, making it clear and consistent with the structure of the array. The other options don't accurately represent the format of the output produced by the function. The output clearly delineates which values correspond to which indices, a critical aspect of understanding the relationship between array