Function factory

-- outside function
local function countup(view, x, y, stats, name)
    return function(event)
        if stats[name] < 25 then stats[name] = stats[name] + 1 end
        view.text = stats[name]
        view:setReferencePoint(display.TopLeftReferencePoint)
        view.x, view.y = x, y
    end
end

--  in place
    if goalAttack - self.Stats.Attack ~= 0 then
        timer.performWithDelay(100, countup(self.attackText, 194, 153, self.Stats, "Attack"), goalAttack - self.Stats.Attack)
    end