How to properly cut out icons from the source code in Illustrator?

Question

Adobe Illustrator

Hello. There is a source in illustrator. I'm a little lost after photoshop.
For example, I select a group of icons. How to export it to .png with alpha channel?

Answer 1

How to save only selected object in svg from .ai file?
But instead of saving the Svg, you can immediately click ctrl+alt+shift+s (save for web), or export artboards (file-export->png->use artboards->transparency), just make sure that there is no white under the group substrates