I have just cooked noodles in microwave. In some websites it says to drain water before eating it. Some doesn't say about draining water.
Should I drain the water as I have cooked it in microwave?
Depends on what sort of noodles, but you could cook them with less water. If you cook the noodles with 'just enough' water it will all be absorbed during cooking, so there will be none left to drain.
This would probably be quicker, as there is less water for the microwave to heat up. Also, if the noodles have any sort of seasoning, draining the water could wash this away, so you would lose some flavour.