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Documentation Index

Fetch the complete documentation index at: https://upstash.com/docs/llms.txt

Use this file to discover all available pages before exploring further.

Arguments

key
string
required
The key of the set to check.
member
TMember
The member to check for.

Response

1 if the member exists in the set, 0 if not.
await redis.sadd("set", "a", "b", "c"); 
const isMember =  await redis.sismember("set", "a");
console.log(isMember); // 1