List
LPUSHX
Push an element at the head of the list only if the list exists.
Arguments
keybodystringrequired
The key of the list.
elementsbody...TValue[]required
One or more elements to push at the head of the list.
Response
numberrequired
The length of the list after the push operation.
0 if the list did not exist and thus no element was pushed.
Example
await redis.lpush("key", "a", "b", "c"); const length = await redis.lpushx("key", "d"); console.log(length); // 4Without existing list
const length = await redis.lpushx("key", "a"); console.log(length); // 0