for loops and then talk about the alternate style and benefits that Lodash offers.
Appreciate the demo, but it would have been far more useful if you would have taken it beyond the extremely simple single property case.
Ideally you wouldn't look for the "first" Susan or the "last" Susan because that breaks depending on how your data is structured. You really should be looking at how do I find the "Susan with age 10". Same with sorting and any other sort of thing. Very rarely will you have simple requirements to just sort on a single property :)