SRANDMEMBER for random elements in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get one random member from the set 'colors'.

Redis

SRANDMEMBER [1]

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

Acolors

Brandom

Cmembers

Dset

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'random' instead of the set name.

Using 'members' which is not a valid argument here.

Using 'set' which is a keyword, not the set name.

The command SRANDMEMBER colors returns one random element from the set named 'colors'.

2fill in blank

medium

Complete the code to get 3 random members from the set 'fruits'.

Redis

SRANDMEMBER [1] 3

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

Arandom

Bfruits

Cmembers

Dset

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'random' instead of the set name.

Using 'members' which is not the set name.

Using 'set' which is a keyword, not the set name.

The command SRANDMEMBER fruits 3 returns 3 random members from the set named 'fruits'.

3fill in blank

hard

Fix the error in the command to get 2 random members from the set 'animals'.

Redis

SRANDMEMBER animals [1]

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

A2

B-2

Ctwo

Dcount

Attempts:

3 left

💡 Hint

Common Mistakes

Using the word 'two' instead of the number 2.

Using negative numbers when positive count is needed.

Using 'count' as a literal argument.

The count argument must be a number. Using 2 correctly requests 2 random members.

4fill in blank

hard

Fill both blanks to get 2 unique random members from the set 'cities'.

Redis

SRANDMEMBER [1] [2]

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

Acities

B-2

C2

D-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using negative count which allows duplicates.

Using wrong set name.

Using zero or negative numbers incorrectly.

Using SRANDMEMBER cities 2 returns 2 unique random members from the set 'cities'. Negative counts return repeated members.

5fill in blank

hard

Fill both blanks to get 3 random members from the set 'numbers', allowing duplicates.

Redis

SRANDMEMBER [1] [2]

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

Anumbers

B-3

C3

D-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using positive count which returns unique members only.

Using wrong set name.

Using zero or positive numbers incorrectly.

Using SRANDMEMBER numbers -3 returns 3 random members from the set 'numbers', allowing duplicates.