redisExists: Test the existence of a key in the Redis database.
In rredis: "Redis" Key/Value Database Client
Description
Usage
Arguments
Details
Value
Author(s)
References
See Also
Examples
Description
Test the existence of a key in the Redis database.
Usage
1
redisExists(key)
Arguments
key
The (required) character identifier to be looked up.
Details
The key must not contain spaces or newline characters (otherwise an error will be thrown).
Value
Returns FALSE if no matching key, TRUE if matching key exists, and NULL
if an error occured.
Author(s)
B. W. Lewis
References
http://redis.io/commands
See Also
Examples
1
2
3
4
5
## Not run:
redisSet('x',runif(5))
redisExists('x')
## End(Not run)
rredis documentation built on May 2, 2019, 2:02 p.m.
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Description Usage Arguments Details Value Author(s) References See Also Examples
Description
Test the existence of a key in the Redis database.
Usage
1 | redisExists(key)
|
Arguments
key |
The (required) character identifier to be looked up. |
Details
The key must not contain spaces or newline characters (otherwise an error will be thrown).
Value
Returns FALSE if no matching key, TRUE if matching key exists, and NULL if an error occured.
Author(s)
B. W. Lewis
References
http://redis.io/commands
See Also
Examples
1 2 3 4 5 | ## Not run:
redisSet('x',runif(5))
redisExists('x')
## End(Not run)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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