Decrement the value corresponding to the specified key by one.
Usage
redisDecr(key)
Arguments
key
A key corresponding to the value to decrement.
Value
The new value of key after the decrement, returned as an integer.
Details
The value should be a character representation of an integer.
If the key does not exist or contains a value of a wrong type, set the
key to the value of "0" before to perform the operation.