SADD and SREM for membership in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a member to a Redis set named 'fruits'.

Redis

SADD fruits [1]

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

Abanana

Bapple

Corange

Dgrape

Attempts:

3 left

💡 Hint

Common Mistakes

Using a command other than SADD to add members.

Forgetting to specify the member to add.

The SADD command adds the specified member to the set stored at key. Here, 'banana' is added to the 'fruits' set.

2fill in blank

medium

Complete the code to remove a member from the Redis set 'fruits'.

Redis

SREM fruits [1]

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

Abanana

Bkiwi

Cpear

Dmelon

Attempts:

3 left

💡 Hint

Common Mistakes

Using SADD instead of SREM to remove members.

Trying to remove a member that is not in the set.

The SREM command removes the specified member from the set stored at key. Here, 'banana' is removed from the 'fruits' set.

3fill in blank

hard

Fix the error in the command to add 'orange' to the 'fruits' set.

Redis

SADD [1] orange

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

Afruitset

Bfruit

Cfruit_set

Dfruits

Attempts:

3 left

💡 Hint

Common Mistakes

Using a singular or misspelled set name.

Omitting the set name entirely.

The set name must be exactly 'fruits' to add the member correctly. Using a different name will create or modify a different set.

4fill in blank

hard

Fill both blanks to add 'kiwi' and then remove 'apple' from the 'fruits' set.

Redis

SADD fruits [1]
SREM fruits [2]

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

Akiwi

Bapple

Cbanana

Dorange

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the members to add and remove.

Using the wrong command for adding or removing.

First, SADD fruits kiwi adds 'kiwi' to the set. Then, SREM fruits apple removes 'apple' from the set.

5fill in blank

hard

Fill all three blanks to add 'grape', remove 'melon', and add 'pear' to the 'fruits' set.

Redis

SADD fruits [1]
SREM fruits [2]
SADD fruits [3]

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

Agrape

Bmelon

Cpear

Dapple

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of commands.

Using SREM to add members or SADD to remove.

The commands add 'grape', remove 'melon', and add 'pear' to the 'fruits' set in order.