hash (version 2.2.6.3)

clear: Removes all key-value pairs from a hash

Description

clear removes all key-values from a hash.

Usage

clear(x)

Value

None. Method clear exists entirely for its side effects.

Arguments

x

A hash object.

Author

Christopher Brown

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.

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.