红宝石 |符号 casecmp函数
Symbol#casecmp() : casecmp()是一个 Symbol 类方法,用于检查 Symbol 的大小写不敏感版本
Syntax: Symbol.casecmp()
Parameter: Symbol values
Return: the case-insensitive version of Symbol
示例 #1:
# Ruby code for Symbol.casecmp() method
# declaring Symbol
a = :aBcDeF
# declaring Symbol
b = :"\u{e4 f6 fc}"
# declaring Symbol
c = :ABCDEF
# Symbol
puts "Symbol a : #{a}\n\n"
puts "Symbol b : #{b}\n\n"
puts "Symbol c : #{c}\n\n\n\n"
# casecmp form
puts "Symbol a casecmp form : #{a.casecmp(:aBcDeF)}\n\n"
puts "Symbol b casecmp form : #{b.casecmp(:"\u{e4 f6 fc}")}\n\n"
puts "Symbol c casecmp form : #{c.casecmp(:abcd)}\n\n"
输出 :
Symbol a : aBcDeF
Symbol b : äöü
Symbol c : ABCDEF
Symbol a casecmp form : 0
Symbol b casecmp form : 0
Symbol c casecmp form : 1
示例 #2:
# Ruby code for Symbol.casecmp() method
# declaring Symbol
a = :geeks
# declaring Symbol
b = :"\u{e5 f6 f3}"
# declaring Symbol
c = :GEEKS
# Symbol
puts "Symbol a : #{a}\n\n"
puts "Symbol b : #{b}\n\n"
puts "Symbol c : #{c}\n\n\n\n"
# casecmp form
puts "Symbol a casecmp form : #{a.casecmp(:gEEks)}\n\n"
puts "Symbol b casecmp form : #{b.casecmp(:"\u{e5 f6 f3}")}\n\n"
puts "Symbol c casecmp form : #{c.casecmp(:GGGG)}\n\n"
输出 :
Symbol a : geeks
Symbol b : åöó
Symbol c : GEEKS
Symbol a casecmp form : 0
Symbol b casecmp form : 0
Symbol c casecmp form : -1