Posted 3 months ago. Visible to the public.

Ruby: Comparing a string or regex with another string

In Rubocop you might notice the cop Style/CaseEquality for e.g. this example:

def foo(expected, actual) expected === actual end

In case expected is a Regex, it suggests to change it to the following pattern:

def foo(expected, actual) expected.match?(actual) end

In case expected is a Regex or a String, you need to keep ===. Otherwise the actual expression is always converted to a regular expression.

# For expected === actual foo('Test(s)', 'Test(s)') #=> true # For expected.match?(actual) foo('Test(s)', 'Test(s)') #=> false

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Owner of this card:

Emanuel De
Last edit:
3 months ago
by Emanuel De
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Posted by Emanuel De to makandra dev
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