contain two yields, then call it with a block. It executes the block twice. : yield « Method « Ruby






contain two yields, then call it with a block. It executes the block twice.


def gimme
  if block_given?
    yield
    yield
  else
    puts "I'm blockless!"
  end
end

gimme { print "Say hi again. " } # => Say hi again. Say hi again.

 








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1.How do you reach the code in the block from inside the method?
2.execute the yield statement any number of times
3.yield method automatically detects any passed code block and passes control to it
4.You can pass data to code clocks used with methods simply by passing that data to the yield statement.
5.So not only can you pass arguments to a method, you can also pass code blocks - and the method can even pass arguments to that code block.
6.after yield executes, control comes back to the next statement immediately following yield.
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9.Write a simple function that returns members of the Fibonacci series up to a certain value.