LPOS

Returns the index of matching elements inside a list.

1 min read

Arguments#

keystringrequired#

The key of the list.

elementunknownrequired#

The element to match.

opts#

ranknumber#

The rank of the element to match. If specified, the element at the given rank is matched instead of the first element.

countnumber#

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

maxLennumber#

Limit the number of comparisons to perform.

await redis.rpush("key", "a", "b", "c"); const index = await redis.lpos("key", "b");console.log(index); // 1