redis SREM command
Translation results：
UK [s'rem] US [s'rem]
abbr.sleep with rapid eye movements eyes with rapid eye movements while sleeping
redis SREM commandsyntax
Function: Remove one or more member elements from the collection key. Non-existing member elements will be ignored.
Syntax: SREM key member [member ...]
Description: When key is not a collection type, an error is returned. Before Redis 2.4, SREM only accepted a single member value.
Available versions: >= 1.0.0
Time complexity: O(N), N is the number of given member elements .
Returns: The number of elements that were successfully removed, excluding ignored elements.
redis SREM commandexample
# 测试数据 redis> SMEMBERS languages 1) "c" 2) "lisp" 3) "python" 4) "ruby" # 移除单个元素 redis> SREM languages ruby (integer) 1 # 移除不存在元素 redis> SREM languages non-exists-language (integer) 0 # 移除多个元素 redis> SREM languages lisp python c (integer) 3 redis> SMEMBERS languages (empty list or set)