[Haskell-cafe] How to make such code?

[Magicloud Magiclouds]

Hi,
  In Haskell's way, normally, we write:
if condition then
  expression_true
else
  expression_false

  But I just heard that, in fancy way, we could do:
do
  ifNeedToDo >> doIt
  bluh

  May I have any clue here?
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