module Fusu::Hash::ReverseMerge
Public Instance Methods
reverse_merge(hash, other_hash)
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Merges the caller into other_hash
. For example,
options = Fusu::Hash.reverse_merge(options, {size: 25, velocity: 10})
is equivalent to
options = { size: 25, velocity: 10 }.merge(options)
This is particularly useful for initializing an options hash with default values.
# File lib/fusu/hash/reverse_merge.rb, line 14 def reverse_merge(hash, other_hash) other_hash.merge(hash) end
reverse_merge!(hash, other_hash)
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Destructive reverse_merge
.
# File lib/fusu/hash/reverse_merge.rb, line 19 def reverse_merge!(hash, other_hash) # right wins if there is no left hash.merge!( other_hash ){|key,left,right| left } end
Also aliased as: reverse_update