How do you use the node.js redis library, what are the core concepts of redis and what does all the redis functions do, e.g. hset, hget etc? Could I have some example.
How do you use the nodejs redis library
Check out node_redis and its examples.
what are the core concepts of redis
You should look at redis data types in order to get a bigger picture of its concepts and data types.
what does all the redis functions do
Try to look at this introduction in order to better understand its commands.