How to use the component expression

Peace be upon you all, I would like to ask as a beginner about the component expression and how to use it and what are its benefits
image

the most powerful component out there…

Thanks, this is more than I expected

It’s the easiest way to embed some code into a network. It’s limited to a single line instruction only, but you can add all the variables you like. Click on the upper right button in the editor window to see that function list @Rickson posted.

THANK YOU SO MUCH DAVID On this illustration.