How to update Redis list item?

Question

I'm currently researching high scalable web site architectures,nearly all of the articles i've read say that Redis is very good choice for a timeline(facebook,twitter like) architecture.So let's suppose that I'm building a new social network and I want to save last 500 feeds of each user with Redis,I'm just curious about what will happen when a user delete a feed which is in last 500 feeds? I couldn't find any information about updating Redis list item,if there is no such a thing in Redis how can it be a very good choice?

Answer 1

Using the Lset command will allow you to update a list item: https://redis.io/commands/lset