红宝石 |字符串 === 方法

===()是 Ruby 中的 String 类方法，用于检查 str==obj 是否。该方法类似于字符串类的 == 方法。

Syntax: str === obj

Parameters: Here, str is the given string and obj is the object to be compared.

Returns: True or False based on the equality of the two strings.

示例 1：

#ruby 2.3.1 
     
# Ruby program to demonstrate
# the === method
     
# Taking a string and
# using the method
puts "Ruby" === "Ruby"
puts "Hello" === "Hell"

输出：

true
false

示例 2：

#ruby 2.3.1 
     
# Ruby program to demonstrate
# the === method
     
# Taking a string and
# using the method
puts "ayucdef" === "ayucdefg"
puts "Ruby" === 77

输出：

false
false