GetCommand
GET _key_
Time complexity: O(1)Get the value of the specified key. If the keydoes not exist the special value 'nil' is returned.If the value stored at key is not a string an erroris returned because GET can only handle string values.
Get the value of the specified key. If the keydoes not exist the special value 'nil' is returned.If the value stored at key is not a string an erroris returned because GET can only handle string values.