casecmp(p1) public

Case-insensitive version of String#<=>. Currently, case-insensitivity only works on characters A-Z/a-z, not all of Unicode. This is different from String#casecmp?.

"aBcDeF".casecmp("abcde")     #=> 1
"aBcDeF".casecmp("abcdef")    #=> 0
"aBcDeF".casecmp("abcdefg")   #=> -1
"abcdef".casecmp("ABCDEF")    #=> 0

nil is returned if the two strings have incompatible encodings, or if other_str is not a string.

"foo".casecmp(2)   #=> nil
"\u{e4 f6 fc}".encode("ISO-8859-1").casecmp("\u{c4 d6 dc}")   #=> nil
Show source
Register or log in to add new notes.