组织符号和哈希数组

Question

有没有更有效的方法？

items = [:one, :two, {three: 3}, {four: 4}, :five, :six]  # => [:one, :two, {:three=>3}, {:four=>4}, :five, :six]

symbols = items.select { |n| n.class == Symbol }              # => [:one, :two, :five, :six]
params = items.select { |n| n.class == Hash }.reduce(:merge)  # => {:three=>3, :four=>4}
symbols << params                                             # => [:one, :two, :five, :six, {:three=>3, :four=>4}]

Answer 1

如果数组中只有 Symbols 和 Hashes，您可以使用 partition 并通过 2 个步骤获得相同的结果：

s, h = items.partition {|i| i.class == Symbol}
s << h.reduce(&:merge)
#=> [:one, :two, :five, :six, {:three=>3, :four=>4}]