Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
Client.lindex(key)
Returns the specified element of the list stored at key
. The index is zero-based. Negative indices can be used to designate elements starting at the tail of the list.
Parameters
Parameter | Type | Description |
---|---|---|
key | string | key holding the list to get the element of. |
Returns
Type | Resolves with | Rejected when |
---|---|---|
Promise<string> | On success, the promise resolves with the requested element. | If the list does not exist, or the index is out of bounds, the promise is rejected with an error. |
Example
import redis from 'k6/experimental/redis';
// Instantiate a new redis client
const redisClient = new redis.Client('redis://localhost:6379');
export default async function () {
await redisClient.rpush('mylist', 'first');
await redisClient.rpush('mylist', 'second');
await redisClient.rpush('mylist', 'third');
const item = await redisClient.lindex('mylist', 0);
if (item !== 'first') {
throw new Error('lindex operation should have returned first');
}
await redisClient.lrange('mylist', 1, 2);
}