clear {hash} | R Documentation |
Removes all key-value pairs from a hash
Description
clear
removes all key-values from a hash.
Usage
clear(x)
Arguments
x |
A |
Details
Currently clear
removes (rm
) the key-value pairs on
the hash. For large hashes it might be faster to reinitialize the
hash, though this might cause memory leaks.
Value
None. Method clear exists entirely for its side effects.
Note
clear
should be called prior to removing a hash. This ensures
that the memory from the environment is freed.
Author(s)
Christopher Brown
See Also
del
to remove specific key-values
from the hash. hash
.
Examples
h <- hash( letters, 1:26 )
h # An object of type 'hash' containing 26 key-value pairs.
clear(h)
h # An object of type 'hash' containing 0 key-value pairs.
[Package hash version 2.2.6.3 Index]