Array modification (push, pop, shift, unshift) in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add the number 5 to the end of the array.

Ruby

numbers = [1, 2, 3, 4]
numbers.[1](5)
puts numbers.inspect

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

Aunshift

Bpop

Cpush

Dshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using pop removes the last element instead of adding.

Using shift removes the first element.

Using unshift adds to the beginning, not the end.

The push method adds an element to the end of the array.

2fill in blank

medium

Complete the code to remove the first element from the array.

Ruby

fruits = ['apple', 'banana', 'cherry']
removed = fruits.[1]()
puts removed
puts fruits.inspect

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

Apop

Bunshift

Cpush

Dshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using pop removes the last element, not the first.

Using push or unshift add elements instead of removing.

The shift method removes and returns the first element of the array.

3fill in blank

hard

Fix the error in the code to add 'orange' to the beginning of the array.

Ruby

colors = ['red', 'green', 'blue']
colors.[1]('orange')
puts colors.inspect

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

Aunshift

Bpop

Cpush

Dshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using push adds to the end, not the beginning.

Using pop or shift remove elements instead of adding.

The unshift method adds an element to the beginning of the array.

4fill in blank

hard

Fill both blanks to remove the last element and add 'kiwi' to the beginning of the array.

Ruby

basket = ['apple', 'banana', 'cherry']
basket.[1]()
basket.[2]('kiwi')
puts basket.inspect

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

Apop

Bpush

Cunshift

Dshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using shift instead of pop removes the first element.

Using push instead of unshift adds to the end.

pop removes the last element, and unshift adds an element to the beginning.

5fill in blank

hard

Fill all three blanks to add 10 to the end, remove the first element, and add 5 to the beginning of the array.

Ruby

nums = [1, 2, 3]
nums.[1](10)
removed = nums.[2]()
nums.[3](5)
puts nums.inspect
puts removed

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

Apop

Bshift

Cunshift

Dpush

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up pop and shift for removing elements.

Using push instead of unshift to add at the beginning.

push adds to the end, shift removes the first element, and unshift adds to the beginning.