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How come it shows up as NaN even though it is a number?

I'm confused. So this was a project for my Dad to calculate mean deviation. But then i was like yay it should work and the JavaScript looked ok, but what was wrong with innerHTML?
because it said NaN instead of the actual mean deviation.
please help.

Answered by Coder100 [earned 5 cycles]

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ok so basically the error is that all the meandev variables are not defined:


let meanDev1;
let meanDev2;
let meanDev3;
let meanDev4;
let meanDev5;

This is because in your function:


function calc(theVar, meanDev) {

You don't own meanDev (meaning you can't change the variable that gave you that value). The solution is to just return the value.

ALSO ADD SEMICOLONS THIS IS NOT PYTHON

ok fine @Coder100

so did your problem get solved @ComputingSquid

@Coder100

nope

😢 sad @Coder100

what was your input @ComputingSquid

um you didn't even use my code @ComputingSquid

lol your code has to be


function calc(theVar) {
   if (theVar > mean) {
     return theVar - mean;
   } else if(x1 < mean) {
     return mean - theVar;
   } else {//x=mean
     return 0;
   } 
  }
  meanDev1 = calc(x1);
  meanDev2 = calc(x2);
  meanDev3 = calc(x3);
  meanDev4 = calc(x4);
  meanDev5 = calc(x5);

didn't I tell you lol
@ComputingSquid

ok fixed i think @Coder100

awesome @ComputingSquid

not again it still is not fixed @Coder100

why are you still not using my code @ComputingSquid

why are you not setting the variable

You have


calc(x1);
  calc(x2);
  calc(x3);
  calc(x4);
  calc(x5);

I have


meanDev1 = calc(x1);
  meanDev2 = calc(x2);
  meanDev3 = calc(x3);
  meanDev4 = calc(x4);
  meanDev5 = calc(x5);

@ComputingSquid

no you are not look at what I have and look at what you have you have to set the variable to that value @ComputingSquid

my function only returns the result you have to set that result to the variable smh @ComputingSquid

yay ok it works i think @Coder100

yay @ComputingSquid

we commented so much we at top of feed lol
YayTopFeed
@Coder100

lmao @ComputingSquid

lol @ComputingSquid

who knew comments had that much impact xD @ComputingSquid

me: 🤣🤣🤣🤣🤣🤣🤣 @Coder100

lol @ComputingSquid

i dunno maybe i should advertise my repls on my post haha @Coder100

lmao @ComputingSquid

Can I ask why you are doing Number(meanDev) and then discarding the result?

where?

wait what @Coder100

ok read my solution
this is a very big mistake never ever do this again @ComputingSquid

thank you @Coder100

no problem :) mark as correct answer? @ComputingSquid

i did your welcome @Coder100