Hmm... I'm implementing a GCD function on N.y(n), but I'm not sure what the default input should be

1 would be pointless, since the GCD of anything and 1 is always 1

Excuse me: the GCD of any integer and 1 is always 1

Oh my gosh: I'm experiencing a merge conflict because of a single added + in a line I didn't touch???

Well, it was easy to fix, so that's good

@ETHproductions Can you help me with some JS? I'm super rusty (thanks to Japt)...

Current function f=s=>[...s].map(x=>x.charCodeAt(0)-32).map(n=(x,y=x)=>(x*x)%95==y?x:g(x-10))

I want the value of y to be the original value of x

Is that confusing?

@ETHproductions Good point, 2 then?

map(n=(x,y=x)=>(x*x)%95==y?x:g(x-10)) ...I'm trying to find the root modulo of x, but I need to keep the original value of x after decrementing.

So I'm trying to set y to the original value of x, but obviously it gets updated if I do (x,y=x)

@Oliver .map is called with (item, index, array) so you can't do anything with default parameters unless you do (x,i,a,y=x)=>

You could do n=x=>(y=x)*x%95==y?x:g(x-10) I think

Oh wait, do you want y to be the current value of x + 32?

hmm, it's a bit more complicated like that

f=s=>[...s].map(x=>(g=x=>x*x%95==y?x:g(x-10))(y=x.charCodeAt(0)-32))

I think this should work

@ETHproductions That's a really good work around. Thanks!

I believe s=>[...s].map(x=>(g=x=>x*x%95==y?String.fromCharCode(x+32):g(x-10))(y=x.charCod‌​eAt(0)-32)) solves the challenge.

@Oliver That'd be interesting. Xy would be 2 for even integers, 1 for odd, and some decimal for non-integers

@Oliver If output as a list of characters is allowed, yes. You could do s=>String.fromCharCode(...[...s].map()) if not

Or s=>s.replace(/./g,x=>...)

The input can be a list of chars

s=>s.map(x=>(g=x=>x*x%95==y?String.fromCharCode(x+32).join(""):g(x-10))(y=x.cha‌​rCodeAt(0)-32))

wait that doesn't work

Are you sure x-10 is what you want?

Why not x-1 or x+1?

I'm not sure, I figured -1 would always land true 40

I need [80, 85, 66] -> [40, 35, 16] If I decrement, wouldn't it always land on 40

You could start at 0 and do x+1

s=>s.map(x=>(g=z=>z*z%95==x.cha‌​rCodeAt(0)-32?String.fromCharCode(z+32):g(z+1))(0))

Wait, what's the .join("") for? That'll just throw an error

I need to turn the array into a string

You've got it in the wrong place then, it should be at the very end

You're right, thank you

That took you all of 30 seconds? :P

I've been working on it for like 15 minutes :P

c!bHÆJÃc95Dz%95+H also works, though 1 byte longer

@Oliver What was wrong with your answer?

@ETHproductions Had to handle [""], fixed now

Ugh, nvm

@Oliver You don't have to handle [""], the empty string is represented as []

But there's a test case '' -> ''

In Chrome, it throws an exception

'' represented as a list of chars is equivalent to [...''], try that

f([...''])

Hint: [...''] is the empty array []

Thanks :) I was actually about to add s+1!="1"?...:"" (I'm bad at JS)

@ETHproductions Output can be an array

Oh, so you don't even need the .join("")

Correct

@ETHproductions You ended up not having a default for GCD? :P

I pushed it before you talked to me about it :P

What's a coprime

> if the only positive integer that divides both of them is 1

ah ok

So their GCD is 1

Right

That's what it does internally (this.y(n) == 1)

Shortest :D

Nice! \o/

Just pushed a whole bunch of changes to v2 (mostly refactoring and cleaning up the code). If you run across anything sketchy while testing code, just let me know

Will do

Also added the default argument for the GCD function :P

Heh :P

Maybe change the docs to .y(n=2)

Oh right

Hey, no more alerts for non-functions

Yeah, since there were a ton of non-functions that didn't have the alert I decided to just get rid of the ones that did

You expanded the single line functions, yay!

It makes stepping through functions easy

Posted a question on SO for the first time in a long time: stackoverflow.com/q/45337572/4449486

@ETHproductions Hm, hope you figure that one out. Sounds like a real doozy

Sorry but, what does /../g match? regex101 isn't helping me with that one. Or is the .. a placeholder

I'm sure this doesn't help, but if you drop the g flag, you get the desired output

Oh, but the regex coming in can gave the g

Can you modify the regex coming in and catch gs?