casecmp is a String class method in Ruby which is Case-insensitive version of String#<=>. For now, case-insensitivity only works on characters A-Z/a-z, not all of the Unicode characters. This method is different from casecmp! method.
Syntax: str.casecmp(other_str)
Parameters: Here, str is the given string to be checked and other_str is the string to which str is compared.
Returns:This method will returns the true or false based on the equality of the str and other_str. It can also return nil if the two strings have incompatible encodings, or if other_str is not a string.
Example 1:
# Ruby program to demonstrate # the casecmp method # Taking a string and # using the method puts "RuBy".casecmp("ruby")
puts "GeeksforGeeks".casecmp("gfg")
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Output:
0 -1
Example 2:
# Ruby program to demonstrate # the casecmp method # Taking a string and # using the method # here it will give nil puts "\u{e5 f6 dc}".encode("ISO-8859-1").casecmp("\u{c4 d4 de}")
puts "GFG".casecmp("250")
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Output:
1