GETSET key value

Syntax

GETSET key value

       sets key to value and returns the old value stored at key.

   

127.0.0.1:6379> set age 25 
OK 
127.0.0.1:6379> getset age 26 
"25" 
127.0.0.1:6379> getset age 27 
"26" 
127.0.0.1:6379> 

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