Array sorting and reversing in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to sort the array in ascending order.

Ruby

numbers = [5, 3, 8, 1]
sorted_numbers = numbers.[1]

Drag options to blanks, or click blank then click option'

Ashuffle

Bsort

Creverse

Dpop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'reverse' instead of 'sort' will reverse the array but not sort it.

The sort method arranges the elements of the array in ascending order.

2fill in blank

medium

Complete the code to reverse the order of elements in the array.

Ruby

letters = ['a', 'b', 'c', 'd']
reversed_letters = letters.[1]

Drag options to blanks, or click blank then click option'

Areverse

Bpop

Csort

Dshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'sort' will reorder elements alphabetically, not reverse them.

The reverse method flips the order of elements in the array.

3fill in blank

hard

Fix the error in the code to sort the array in descending order.

Ruby

scores = [10, 40, 30, 20]
desc_scores = scores.sort.[1]

Drag options to blanks, or click blank then click option'

Apop

Bsort

Cshuffle

Dreverse

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to use 'sort' twice or using 'shuffle' which randomizes the array.

To sort in descending order, first sort ascending, then reverse the array.

4fill in blank

hard

Fill both blanks to create a new array with sorted elements and then reversed.

Ruby

data = [7, 2, 9, 4]
result = data.[1].[2]

Drag options to blanks, or click blank then click option'

Asort

Breverse

Cpop

Dshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'pop' or 'shift' which remove elements instead of sorting or reversing.

First, sort arranges the array ascending, then reverse flips it to descending.

5fill in blank

hard

Fill all three blanks to sort the array, reverse it, and then get the first element.

Ruby

values = [15, 3, 9, 7]
first = values.[1].[2].[3]

Drag options to blanks, or click blank then click option'

Asort

Breverse

Cfirst

Dlast

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'last' instead of 'first' will get the smallest element after reversing.

We sort ascending, reverse to descending, then get the first element which is the largest.