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LINDEX

Returns the element at index index in the list stored at key. Negative indices are supported, with -1 being the last element of the list, -2 the penultimate, and so forth. When the value at key is not a list, an error is returned.

Syntax​

LINDEX key index

Details​

  • Available since: 1.0.0
  • Time complexity: O(N) where N is the number of elements in the list. Index fetching is O(1) when the list is implemented as a linked list and small indexes are used.
  • ACL categories: @read, @list, @slow

Examples​

Assume we have a list called mylist with elements "Hello", "World", and "Goodbye":

RPUSH mylist "Hello"
RPUSH mylist "World"
RPUSH mylist "Goodbye"

Now, let's fetch the element at index 1:

LINDEX mylist 1

This will output:

"World"

RESP2/RESP3 Reply​

Bulk string reply: the requested element, or nil when index is out of range.