LPUSH and RPUSH for insertion in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add an element to the start of a Redis list.

Redis

LPUSH mylist [1]

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

A"banana"

B"cherry"

C"apple"

D"date"

Attempts:

3 left

💡 Hint

Common Mistakes

Using RPUSH instead of LPUSH when adding to the start.

Forgetting to put quotes around the element.

LPUSH adds the specified element to the start (left) of the list. Here, "banana" is added.

2fill in blank

medium

Complete the code to add an element to the end of a Redis list.

Redis

RPUSH mylist [1]

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

A"honeydew"

B"grape"

C"egg"

D"fig"

Attempts:

3 left

💡 Hint

Common Mistakes

Using LPUSH instead of RPUSH when adding to the end.

Not quoting the element string.

RPUSH adds the specified element to the end (right) of the list. Here, "grape" is added.

3fill in blank

hard

Fix the error in the command to add "kiwi" to the start of the list.

Redis

LPUSH mylist [1]

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

Akiwi"

Bkiwi

C'kiwi'

D"kiwi"

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the string element.

Using mismatched or incomplete quotes.

The element must be a string enclosed in double quotes. Option D is correct.

4fill in blank

hard

Fill both blanks to add "lemon" to the start and "mango" to the end of the list.

Redis

LPUSH mylist [1]
RPUSH mylist [2]

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

A"lemon"

B"melon"

C"mango"

D"lime"

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the elements between LPUSH and RPUSH.

Forgetting quotes around the elements.

LPUSH adds "lemon" to the start, RPUSH adds "mango" to the end.

5fill in blank

hard

Fill all three blanks to add "orange" to the start, "pear" to the end, and "plum" to the start again.

Redis

LPUSH mylist [1]
RPUSH mylist [2]
LPUSH mylist [3]

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

A"orange"

B"pear"

C"plum"

D"peach"

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of elements.

Using RPUSH when LPUSH is needed and vice versa.

LPUSH adds "orange" and "plum" to the start, RPUSH adds "pear" to the end.