红宝石 |哈希 == 值

Hash#==() : ==()是一个 Hash 类方法，它检查两个 Hash 值的相等性。

Syntax: Hash.==()

Parameter: Hash values

Return: true – if a == b otherwise return false

示例 #1：

# Ruby code for Hash.==() method
  
# declaring Hash value
a = {a:100, b:200}
  
# declaring Hash value
b = {a:100, c:300, b:200}
  
# declaring Hash value
c = {a:100}
  
# COMPARING TWO Hash VALUES
puts "Hash a == b : #{a==b}\n\n"
  
# b
puts "Hash b == c : #{b==c}\n\n"
  
# c
puts "Hash a == c : #{c==a}\n\n"

输出 ：

Hash a == b : false

Hash b == c : false

Hash a == c : false

示例 #2：

# Ruby code for Hash.==() method
  
# declaring Hash value
a = { "a" => 100, "b" => 200 }
  
# declaring Hash value
b = {"a" => 100}
  
# declaring Hash value
c = {"a" => 100, "c" => 300, "b" => 200}
  
  
# COMPARING TWO Hash VALUES
puts "Hash a == b : #{a==b}\n\n"
  
# b
puts "Hash b == c : #{b==c}\n\n"
  
# c
puts "Hash a == c : #{c==a}\n\n"

输出 ：

Hash a == b : false

Hash b == c : false

Hash a == c : false