红宝石 |正则表达式 ===()函数
Regexp#===() : ===()是一个 Regexp 类方法,用于比较两个正则表达式的相等性。
Syntax: Regexp.===()
Parameter: Regexp values
Return: true – if two regular expressions has equality otherwise return false
示例 #1:
# Ruby code for Regexp.===() method
# declaring Regexp value
reg_a = /a/
# declaring Regexp value
reg_b = /geeks/
# declaring Regexp value
reg_c = /a/
# === method
puts "Regexp === form : #{reg_a === reg_b}\n\n"
puts "Regexp === form : #{reg_b === reg_c}\n\n"
puts "Regexp === form : #{reg_c === reg_a}\n\n"
输出 :
Regexp === form : false
Regexp === form : false
Regexp === form : false
示例 #2:
# Ruby code for Regexp.===() method
# declaring Regexp value
reg_a = /geeks/
# declaring Regexp value
reg_b = /problem/
# declaring Regexp value
reg_c = /code/
# === method
puts "Regexp === form : #{reg_a === reg_b}\n\n"
puts "Regexp === form : #{reg_b === reg_b}\n\n"
puts "Regexp === form : #{reg_c === reg_a}\n\n"
输出 :
Regexp === form : false
Regexp === form : false
Regexp === form : false