Use the filter Method to Extract Data from an Array - Help with the ''easy'' part

Ah thank you for that.

How does one know when you need to combine them or not?

I thought if I filtered first, then stored it in a var say x, then used .map on that x and store it in new var say y, it would lead to the same result?

I had the same concern with the above question where eveyrthing was chained together as you explained. However, I left with the understanding that simply splitting it up like…

object.function();
object.function2();
object.function3();

was equal to

object.function().function2().function3();

(An example of above is how socialWindow was handled in the link above)

Hope what I’m asking makes sense?