It sounds like you have learned only of FCC … me i had a understanding of the basics prior to joining FCC …
The basics or the fundamentals are very important to understand … its amazing how much you can do with just them. And they are not overly difficult to learn … constantly practicing them makes them stick. So you should be making up things yourself to try them out different ways so they stick in your head … eg make up your own objects and pull information out of them, splitting strings and rejoining them and adding to them … converting strings to arrays etc etc
we are used to working with small objects that are laid out nicely in FCC and accessing them for info … but when you do the weather api and get a object back and need to pull info out of it … if you havent got a good grasp of the basics you are going to struggle … not because you need to do something you havent learned but because it comes in a big block all squashed together and dosent look like what you are used to working with previously.
if you would like a example of one of these objects let me know i have one i practiced on saved on repl
So with a strong understanding of string array object you can go a long way … another thing that i found very important was regular expressions … harder to learn but can do so much and you should work on getting good with them
I have worked on my weather api , wikipedia and these only required strong understanding of basics … plus added extra on sending get requests … i have finished my calculator and again didnt need anything other than the basic for this (really surprised thought for the calculator i would need to know some fancy code) …
so up until at least the calc you are still using all the basic stuff you learned so it pays to know this stuff well …
what i would consider more intermediate and advanced is understanding things like closure , call apply and bind … this … lexical scope …
closure we use all the time and might not even realize it until we learn what it is but with a better understanding of it we learn to make more use of it.
lexical scope … again we use it but dont realize it … but learning about it lets us do more with our code and avoid unexpected errors and more
call apply and bind and this … well you probably use … this … already … but a strong understanding of … this … is vital and you should be always be trying to learn more on it
Being studying call apply and bind this week … and they are not too difficult to pick up … and yes they make a big difference … its just the type of coding i have being doing hasn’t required the use of them … but i will look back through some things i have done and see if i just didnt use them because i dint know much about them
But on a final note the basic are really really important … dont rush them … as i said i have done a lot in Fcc (mostly not finished due to lack of design skills lol) but the code that was required to do these projects was using a solid understanding of all the basics.