Returns the members of the set resulting from the intersection of all the given sets. Keys that do not exist are considered to be empty sets.
Usage
await redis.sinter(key, ...keys);
Parameters
Additional set keys to intersect with
Response
An array containing the members of the resulting set (intersection of all sets)
Examples
Intersect two sets
await redis.sadd("set1", "a", "b", "c", "d");
await redis.sadd("set2", "c", "d", "e", "f");
const result = await redis.sinter("set1", "set2");
console.log(result); // ["c", "d"]
Intersect multiple sets
await redis.sadd("tags:post1", "javascript", "typescript", "react");
await redis.sadd("tags:post2", "typescript", "react", "node");
await redis.sadd("tags:post3", "react", "vue", "typescript");
const commonTags = await redis.sinter("tags:post1", "tags:post2", "tags:post3");
console.log(commonTags); // ["typescript", "react"]
Find common friends
await redis.sadd("friends:alice", "bob", "charlie", "david");
await redis.sadd("friends:bob", "alice", "charlie", "eve");
const mutualFriends = await redis.sinter("friends:alice", "friends:bob");
console.log(mutualFriends); // ["charlie"]
Empty intersection
await redis.sadd("set1", "a", "b", "c");
await redis.sadd("set2", "d", "e", "f");
const result = await redis.sinter("set1", "set2");
console.log(result); // []