Ruby | Regexp casefold?() function
Last Updated :
17 Dec, 2019
Regexp#casefold?() : casefold?() is a Regexp class method which returns the value of the case-insensitive flag of regular expressions.
Syntax: Regexp.casefold?()
Parameter: Regexp values
Return: value of the case-insensitive flag of regular expressions
Example #1 :
reg_a = /a/
reg_b = /geeks/i
reg_c = /a/
puts "Regexp casefold? form : #{reg_a.casefold?}\n\n"
puts "Regexp casefold? form : #{reg_b.casefold?}\n\n"
puts "Regexp casefold? form : #{reg_c.casefold?}\n\n"
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Output :
Regexp casefold? form : false
Regexp casefold? form : true
Regexp casefold? form : false
Example #2 :
reg_a = /geeks/
reg_b = /problem/
reg_c = /code/i
puts "Regexp casefold? form : #{reg_a.casefold?}\n\n"
puts "Regexp casefold? form : #{reg_b.casefold?}\n\n"
puts "Regexp casefold? form : #{reg_c.casefold?}\n\n"
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Output :
Regexp casefold? form : false
Regexp casefold? form : false
Regexp casefold? form : true
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