Freecodecamp: Need add new challengers about important array method ( map filter reduce) and callback Function, recursive also

[thinh105]

Describe your problem and how to reproduce it:

Map() Filter() and Reduce() are quite advanced but FreeCodeCamp doesnt have any lesson about it, but it appeared a lot on the challenges.

Also is callback function, and recursive - as far as I remember - there is no specific challenge for them,

[ieahleen]

map()
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/use-the-map-method-to-extract-data-from-an-array
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/implement-map-on-a-prototype

filter()
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/use-the-filter-method-to-extract-data-from-an-array
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/implement-the-filter-method-on-a-prototype

reduce()
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/use-the-reduce-method-to-analyze-data

callback
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/understand-functional-programming-terminology

[moT01]

Some lessons covering recursion were added as well - they will be available the next time we push our code to production. So I don't think there's an issue here. If you're satisfied with these you can probably close this @maxiqboy.

[thinh105]

map()
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/use-the-map-method-to-extract-data-from-an-array
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/implement-map-on-a-prototype

filter()
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/use-the-filter-method-to-extract-data-from-an-array
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/implement-the-filter-method-on-a-prototype

reduce()
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/use-the-reduce-method-to-analyze-data

callback
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/understand-functional-programming-terminology

they are not in basic section, they are in advanced section, and FCC are not tell much detail about them like basic example, basic challenges.

Learner had to use them in more complicated challenges in other sections without understand exactly about them.

That what I asked.

How can a newbie can get idea about map() reduce() and filter() in these huge challenges with ton of code lines without any basic example first ?

[thinh105]

Some lessons covering recursion were added as well - they will be available the next time we push our code to production. So I don't think there's an issue here. If you're satisfied with these you can probably close this @maxiqboy.

Can you guys add some basic lesson about map(), filter(), reduce() ?
Not like some advanced lesson as the current one,

That will mean a lot for newbies, thanks,

[ieahleen]

is it about the challenge in the es6 section? it has been removed from there so you meet first the challenges I linked above, you will see the change live with next curriculum update

[thinh105]

is it about the challenge in the es6 section? it has been removed from there so you meet first the challenges I linked above, you will see the change live with next curriculum update

I don't know, but when I studied on FCC last month, I met the challenges you linked above,

These challenges are quite complicated.

I realise that maybe map filter reduce methods are important parts but I saw no basic lesson about them.

I had to search outside and studied outside also,

So I opend this issue hope the next curriculum will update some basic lesson about them

so the new campers come after me can get the idea easily without feeling lost like me before.

Thanks,

[RandellDawson]

FCC is not meant to be a comprehensive curriculum. At some point, campers are expected to research outside and learn to read the docs on the various methods. That being said, when the updated curriculum is release (soon), we have rearranged some of the lessons, so certain challenges are not introduced until map, filter, and reduce have at least been mentioned.

At this point, we will not be creating any new challenges on the existing curriculum. The new curriculum being worked on would be the best place to put such lessons.

[moT01]

Thanks for the suggestions here everyone. We are not looking to add any new challenges to curriculum at this point.