
hash_contains(+Table, ++Key)

   Succeeds if there is an entry stored under key Key

Arguments
   Table               A hash table
   Key                 a ground term

Type
   library(hash)

Modes and Determinism
   hash_contains(+, ++) is semidet

Fail Conditions
   No entry for Key

See Also
   hash_get / 3, hash_list / 3
