intersection. Intersecting hashes

intersection. Intersecting hashes

^hash_a.intersection[hash_b]

The method intersects two hashes. It results in a hash containing keys that belong to both $hash_a and $hash_b. The result has to be assigned to a new hash.

Example
Code…

$man[
   $.name[Jack]
   $.age[22]
   $.sex[m]
]
$woman[
   $.name[Mary]
   $.age[20]
   $.weight[50]
]
$int_hash[^man.intersection[$woman]]

…will return hash $int_hash:

$int_hash[
   $.name[Jack]
   $.age[22]
]

Last updated: 30.03.2004