红宝石 |哈希 to_hash 方法
Hash#to_hash()是一个 Hash 类方法,它返回哈希的自哈希表示。
Syntax: Hash.to_hash()
Parameter: Hash values
Return: self object
示例 #1:
# Ruby code for Hash.to_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}
# to_hash Value
puts "Hash a to_hash form : #{a.to_hash()}\n\n"
puts "Hash b to_hash form : #{b.to_hash()}\n\n"
puts "Hash c to_hash form : #{c.to_hash()}\n\n"
输出 :
Hash a to_hash form : {:a=>100, :b=>200}
Hash b to_hash form : {:a=>100, :c=>300, :b=>200}
Hash c to_hash form : {:a=>100}
示例 #2:
# Ruby code for Hash.to_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}
# to_hash Value
puts "Hash a to_hash form : #{a.to_hash()}\n\n"
puts "Hash b to_hash form : #{b.to_hash()}\n\n"
puts "Hash c to_hash form : #{c.to_hash()}\n\n"
输出 :
Hash a to_hash form : {"a"=>100, "b"=>200}
Hash b to_hash form : {"a"=>100}
Hash c to_hash form : {"a"=>100, "c"=>300, "b"=>200}