Есть ли способ, чтобы тег изображения не был пустым с помощью js? ⇐ CSS

[Гость]

I am new to javascript and I want all products of website to have an image and do not let the user make a product without it having a picture.

Is this possible with only javascript or not?

Sorry I have no idea how to make it.


Источник: https://stackoverflow.com/questions/781 ... ty-with-js