Arguments
string
required
The key to write the union to.
integer
required
How many keys to compare.
string | string[]
required
The keys to compare.
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
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"],
{ weights: [2, 3] },
);
console.log(res) // 2
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"],
{ aggregate: "sum" },
);
console.log(res) // 2
Sorted Set
ZUNIONSTORE
Writes the union between sets to a new key.
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