Storing Lists in Redis: Modification Commands
Explore how to modify lists in Redis using commands like LLEN to get list length, LINDEX to retrieve elements by index, and LSET to update list items. Understand LPUSHX to add elements only if the list exists, and LINSERT to insert new values before or after specific items. This lesson helps you manage Redis lists effectively by mastering key modification commands.
We'll cover the following...
We'll cover the following...
In the previous lesson, we looked at a few commands used to insert lists into the Redis database. In this lesson, we will look at how we can modify a List present in the database.
LLEN command
The LLEN command is used to find the length of the list, as shown below.
LLEN key
LINDEX command
The LINDEX command is used to find the element at a particular index in the list.
LINDEX key index ...