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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | 1x 1x 1x 1x 1x 1x 4x 4x 4x 4x 4x | import { Logger } from "../../../logger";
import { IRequest } from "../../../server/request";
import { DataType } from "../../data/data-type";
import { Database } from "../../data/database";
import { DatabaseValue } from "../../data/database-value";
import { RedisToken } from "../../protocol/redis-token";
import { IRespCommand } from "../resp-command";
/**
* Available since 1.0.0.
*
* SISMEMBER key member
*
* Returns if member is a member of the set stored at key.
*
* **Return value**<br>
* Integer reply, specifically:<br>
* 1 if the element is a member of the set.
* 0 if the element is not a member of the set, or if key does not exist.
*/
export class SIsMemberCommand extends IRespCommand {
public DbDataType = DataType.SET
public maxParams = 2
public minParams = 2
public name = "sismember"
private logger: Logger = new Logger(module.id);
public execSync(request: IRequest, db: Database): RedisToken {
this.logger.debug(
`${request.getCommand()}.execute(%s)`,
...request.getParams()
);
const skey: string = request.getParam(0),
initial: DatabaseValue = db.getOrDefault(
skey,
new DatabaseValue(
DataType.SET,
new Set()
)
),
exists = initial.getSet().has(request.getParam(1))
? 1
: 0;
this.logger.debug(`${request.getCommand()}.execute returning ${exists}`);
return RedisToken.integer(exists);
}
}
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