Does it damage iPhone chargers if you keep in the charger even if it's fully charged?

Does it damage iPhone chargers if you keep in the charger even if it's fully charged? - 1

I don't think it damages the device since my iPad is fine (two years old) and I've left the charger in every night for the past two years.

No I do this all the time.

No. You are just wasting electricity. You should remove the charger from your device and the outlet as soon as it is done charging. Just to prevent wasting of electricity and your money.

No it doesn't.

No I do this all the time.