Order to complete FreeCodeCamp:

Order to complete FreeCodeCamp:
0
#1

I’ve just got the second JS section of the coding challenges (ES6) and I feel like some of the challenges are way too advanced, using parts of JS that haven’t been explained yet. Can anyone recommend a good way to learn all of the sections in a more easy-progressing order?

#2

which part in ES6? is it var vs let? The way I did it was to peek the hints (not the spoilers).