update(other_hash)
Instance Public methods
Updates the receiver in-place, merging in the hash passed as argument:
1 2 3 4 5 6 7 | hash_1 = ActiveSupport::HashWithIndifferentAccess.newhash_1[:key] = 'value'hash_2 = ActiveSupport::HashWithIndifferentAccess.newhash_2[:key] = 'New Value!'hash_1.update(hash_2) # => {"key"=>"New Value!"} |
The argument can be either an
ActiveSupport::HashWithIndifferentAccess or a regular
Hash. In either case the merge respects the semantics of
indifferent access.
If the argument is a regular hash with keys :key and +âkeyâ+
only one of the values end up in the receiver, but which one is
unspecified.
When given a block, the value for duplicated keys will be determined by the
result of invoking the block with the duplicated key, the value in the
receiver, and the value in other_hash. The rules for
duplicated keys follow the semantics of indifferent access:
1 2 3 | hash_1[:key] = 10hash_2['key'] = 12hash_1.update(hash_2) { |key, old, new| old + new } # => {"key"=>22} |
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