Increment the number stored at key by one. 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 increment operation.
<p>
INCR commands are limited to 64 bit signed integers.
<p>
Note: this is actually a string operation, that is, in Redis there are not "integer" types.
Simply the string stored at the key is parsed as a base 10 64 bit signed integer, incremented,
and then converted back as a string.
<p>
Time complexity: O(1)
@see #incrBy(const(ubyte)[], long)
@see #decr(const(ubyte)[])
@see #decrBy(const(ubyte)[], long)
@param key
@return Integer reply, this commands will reply with the new value of key after the increment.
Increment the number stored at key by one. 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 increment operation. <p> INCR commands are limited to 64 bit signed integers. <p> Note: this is actually a string operation, that is, in Redis there are not "integer" types. Simply the string stored at the key is parsed as a base 10 64 bit signed integer, incremented, and then converted back as a string. <p> Time complexity: O(1) @see #incrBy(const(ubyte)[], long) @see #decr(const(ubyte)[]) @see #decrBy(const(ubyte)[], long) @param key @return Integer reply, this commands will reply with the new value of key after the increment.