Ruby Hash merge用法及代码示例

Hash＃merge()是一种Hash类方法，它结合了两个哈希数组及其内容。

用法：Hash.merge()

参数：散列值

返回：结合两个哈希数组

示例1:

# Ruby code for Hash.merge() 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} 
  
  
# merge Value 
puts "Hash a merge form : #{a.merge(b)}\n\n"
  
puts "Hash b merge form : #{b.merge(c)}\n\n"
  
puts "Hash c merge form : #{c.merge(a)}\n\n"

输出：

Hash a merge form : {:a=>100, :b=>200, :c=>300}

Hash b merge form : {:a=>100, :c=>300, :b=>200}

Hash c merge form : {:a=>100, :b=>200}

示例2:

# Ruby code for Hash.merge() 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} 
  
# merge Value 
puts "Hash a merge form : #{a.merge(b)}\n\n"
  
puts "Hash b merge form : #{b.merge(c)}\n\n"
  
puts "Hash c merge form : #{c.merge(a)}\n\n"

输出：

Hash a merge form : {"a"=>100, "b"=>200}

Hash b merge form : {"a"=>100, "c"=>300, "b"=>200}

Hash c merge form : {"a"=>100, "c"=>300, "b"=>200}

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注：本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 Ruby | Hash merge function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。