ZSCORE for member score in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get the score of a member from a sorted set.

Redis

ZSCORE [1] member1

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

AZRANGE

BZADD

Cmyset

Dmember1

Attempts:

3 left

💡 Hint

Common Mistakes

Using the member name as the sorted set key.

Using commands like ZADD or ZRANGE instead of the sorted set key.

The command ZSCORE myset member1 returns the score of member1 in the sorted set myset.

2fill in blank

medium

Complete the code to get the score of 'player42' from the sorted set 'game_scores'.

Redis

ZSCORE [1] player42

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

Agame_scores

Bplayer42

Cscores

Dplayers

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing the member name with the sorted set key.

Using a wrong sorted set key.

The command ZSCORE game_scores player42 fetches the score of player42 from the sorted set game_scores.

3fill in blank

hard

Fix the error in the command to get the score of 'user99' from 'leaderboard'.

Redis

ZSCORE leaderboard [1]

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

Auser99

Bleaderboard

Cuser100

Dscore

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong member name.

Using the sorted set name as the member.

The member name must be user99 to get the correct score from the leaderboard sorted set.

4fill in blank

hard

Fill both blanks to get the score of 'memberX' from the sorted set 'scores_set'.

Redis

ZSCORE [1] [2]

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

Ascores_set

BmemberX

CmemberY

Dscore_set

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the sorted set key and member name.

Using a wrong sorted set key.

The command ZSCORE scores_set memberX returns the score of memberX in the sorted set scores_set.

5fill in blank

hard

Fill all three blanks to get the score of 'playerA' from 'ranking_list' using the correct command format.

Redis

[1] [2] [3]

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

AZSCORE

Branking_list

CplayerA

DZADD

Attempts:

3 left

💡 Hint

Common Mistakes

Using ZADD instead of ZSCORE.

Swapping the order of arguments.

The correct command is ZSCORE ranking_list playerA to get the score of playerA from the sorted set ranking_list.