Associated Array for R

Description Usage Arguments Details Value Note Author(s) See Also Examples

clear removes all key-values from a hash.

clear(x)

## S4 method for signature 'hash'
clear(x)

`x`	A `hash` object.

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.

None. Method clear exists entirely for its side effects.

clear should be called prior to removing a hash. This ensures that the memory from the environment is freed.

Christopher Brown

del() to remove specific key-values from the hash.
hash() to create a new hash

  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.