Are there better ways to prevent 'yield' w

2019-02-02 19:43发布

I have a method that yields, which looks like:

def a_method(*params)
  # do something
  yield
  # do something else
end

I want this method to yield the block if a block is passed in; and if no block is passed in, the method should sliently skip the yield sentense without crashing with something like:

 no block given (yield) (LocalJumpError)

Of course, the most straightforward way is changing the method to:

def a_method(*params, &block)
  # do something
  yield if block
  # do something else
end

But aren't there prettier ways?

标签: ruby block yield
1条回答
男人必须洒脱
2楼-- · 2019-02-02 20:49

Yes! :)

def a_method(*params)
  # ...
  yield if block_given?
  # ...
end
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