What is ::IGNORECASE in Ruby

What does
::IGNORECASE

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do in Ruby?

for example. I see this line of code. What is it doing?

regex = Regexp.new content, Regexp::IGNORECASE

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Mark_CoAsked:
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GaryCommented:
Match against while ignoring case i.e.
casEiNsenSitive
would match
caseinsensitive
and
CASEINSENSITIVE

and any other variations of.
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Mark_CoAuthor Commented:
Sweet! That makes sense thanks
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