Sorted Set
ZUNIONSTORE
Sorted Set
ZUNIONSTORE
Writes the union between sets to a new key.
await redis.zadd(
"key1",
{ score: 1, member: "member1" },
)
await redis.zadd(
"key2",
{ score: 1, member: "member1" },
{ score: 2, member: "member2" },
)
const res = await redis.zunionstore("destination", 2, ["key1", "key2"]);
console.log(res) // 2
Arguments
destination
string
requiredThe key to write the union to.
keys
integer
requiredHow many keys to compare.
keys
string | string[]
requiredThe keys to compare.
options
aggregate
sum | min | max
The aggregation method.
weight
number
The weight to apply to each key.
weights
number[]
The weights to apply to each key.
Response
The number of elements in the resulting set.
await redis.zadd(
"key1",
{ score: 1, member: "member1" },
)
await redis.zadd(
"key2",
{ score: 1, member: "member1" },
{ score: 2, member: "member2" },
)
const res = await redis.zunionstore("destination", 2, ["key1", "key2"]);
console.log(res) // 2