Tell us what’s happening: Code works fine. There are no problems with execution or whatsoever. I just cannot understand how this recursion works, on this block: else { const countArray = countdown(n - 1); console.log(`n: ${n}, countArray ${countArray}`); countArray.unshift(n); return cou…

I think that this thread is the best so far at explaining what is happening here. A few different people have chimed in with how they explain recursion. [image] Recursion: What is actually happening here? JavaScript Ok, my problem isn’t passing the challenge. My problem is…

:point_up: but remember that functions resolve to a value: const countArray = countdown(n - 1), countArray is whatever the countdown function resolves to (ie the value it returns) and it’s going to keep calling it until it gets that return value. It doesn’t get to the return value until it hits the …

I was juust looking at them and thinking about this – one of the issues is that it comes at a point in the curriculum where the primitives that make it much easier to write haven’t been taught: primarily default values, but also I think reverse and definitely concat (rest/spread also makes it a bit …

I think that no matter what recursion will take time to ‘stick’ and will generate questions on the forum. The current questions see reasonable to me, but I’ve also felt comfortable with recursion for a decade, so I’m not sure if I’m the best measure.

Just add this picture from the other linked thread in our tips or suggestions or whatever. This is a very cool example of explaining what is actually going on. I never thought I could do that…

I may have cheated but, I started this course time ago and now I am back on track. Did all over again but, correct me if I am wrong, If I start “Javascript Alghoritms and Data Structure” I dont find any example of the difference between let / const / var. Even if I read article on other sources doe…

I need to go away and think about this a bit more, but the first of the three is fine and emphasise looping. Then it jumps to this – reading back I’m sorry if I sounded really harsh, I just wanted to emphasise that it is really hard and I think that for a beginner to go from imperative loops to to t…

I had the same confusion with this challenge at first. This site was really helpful in understanding what was going on: http://pythontutor.com/javascript.html#mode=edit Copy and paste the solution in and hit visualize execution and it’ll go through what’s happening. In a way it’s almost like it’…

the best explaination of recursion I’ve found so far is on youtube.

I think adding some building blocks together would be cool. this was my solution using a ternary operator to call a function within a function.

Cannot understand how Function Recursion Works on this Problem (even if I figured out the solution)

Programming

ArielLeslie January 24, 2020, 3:29pm 2

I think that this thread is the best so far at explaining what is happening here. A few different people have chimed in with how they explain recursion.

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Cannot understand how Function Recursion Works on this Problem (even if I figured out the solution)

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