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[ci skip] fix doc for the Hash#assert_valid_keys

This commit is contained in:
Aditya Kapoor 2014-06-13 11:56:45 +05:30 committed by Zachary Scott
parent f42f603d8a
commit b81f364905
1 changed files with 3 additions and 3 deletions
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6
activesupport/lib/active_support/core_ext/hash/keys.rb
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@ -57,9 +57,9 @@ class Hash
end
alias_method :to_options!, :symbolize_keys!
# Validate all keys in a hash match <tt>*valid_keys</tt>, raising ArgumentError
# on a mismatch. Note that keys are NOT treated indifferently, meaning if you
# use strings for keys but assert symbols as keys, this will fail.
# Ensures all the hash's keys are present in the supplied list of <tt>*valid_keys</tt>.
# Raises an ArgumentError if any unexpected keys are encountered.
# Note that keys are NOT treated indifferently: strings and symbols will not match each other.
#
# { name: 'Rob', years: '28' }.assert_valid_keys(:name, :age) # => raises "ArgumentError: Unknown key: :years. Valid keys are: :name, :age"
# { name: 'Rob', age: '28' }.assert_valid_keys('name', 'age') # => raises "ArgumentError: Unknown key: :name. Valid keys are: 'name', 'age'"