LPOS

Returns the index of matching elements inside a list.

Arguments

key

str

required

The key of the list.

element

unknown

required

The element to match.

rank

int

Which match to return. 1 to return the first match, 2 to return the second match, and so on. 1 by default.

count

int

The maximum number of elements to match. If specified, an array of elements is returned instead of a single element.

maxlen

int

Limit the number of comparisons to perform.

Response

The index of the matching element or an array of indexes if count is specified.

Example

redis.rpush("key", "a", "b", "c"); 

assert redis.lpos("key", "b") == 1