Repeat actions?

[da good king]

 This is probably a terribly stupid ? to ask, but i cant seem to figure it out, and I just have that feeling it's very simple, but is there a function like do that repeats actions a given number of times? ive done:

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for i in array #contains number of items = to times to repeat)
  #do action
end
but im wondering if there's a reserved word or another do to this.