How to remove element from list in Redis by value?

Question

For exmaple, I have:

127.0.0.1:6379> lrange POST:544 0 -1
1) "1"
2) "2"
3) "36"
127.0.0.1:6379>

I know only value 36, not index. Can I remove element from list by value?

score 20 · Accepted Answer · answered Jun 01 '15 at 08:34

20

Lrem is what you are looking for. use LREM POST:544 1 36.

answered Jun 01 '15 at 08:34

1

This only works when numeric values are stored in the list right? Tried it with string types stored in the list, but it did not work. Instead I did change the list into a set and now for example this works `SREM myset "four"`. – Baran May 10 '18 at 08:16

score 6 · Answer 2 · edited Mar 04 '21 at 12:08

6

If the list contains strings then you may enclose it with double quotes then it works!

eg: sampleList ["one", "two", "three", "four"] If you want to remove "three" then use:

LREM sampleList 1 "three"

edited Mar 04 '21 at 12:08

Duncanmoo

answered Sep 14 '20 at 08:07

prince_29

2 Answers2