Kevin Powell - Community•16mo ago

Why does my Log say the Value is NaN?

well, i have this part of my code inside the js now everytime the loop runs it's supposed to generate a random value for x , y , vX , vY and r but when I log the value inside the loop it says all those variables r NaN this is the part

for(let i=0; i<100; i++){
  
  x = Math.random * innerWidth;
  y = Math.random * innerHeight;
  vX = Math.random * 10 - 5;
  vY = Math.random * 20 - 10;
  r = Math.random * 30;
  console.log(x);
  
  circleArray.push(new Circle(x,y,vX,vY,r));
  
}

for(let i=0; i<100; i++){
  
  x = Math.random * innerWidth;
  y = Math.random * innerHeight;
  vX = Math.random * 10 - 5;
  vY = Math.random * 20 - 10;
  r = Math.random * 30;
  console.log(x);
  
  circleArray.push(new Circle(x,y,vX,vY,r));
  
}

and this is the codepen https://codepen.io/-bloop-/pen/bGxRpmw tnx!!

Tahzib Ebad

CodePen

bGxRpmw

...

14 Replies

Jochem•16mo ago

That part isn't in the linked codepen, but Math.random isn't a value, it's a function

glutonium•16mo ago

i deleted the previous code and inputted it i think i need to save it I don't use codepen so Idk can u try it rn? i saved the new code

Jochem•16mo ago

you can also just make a new one, you can make quite a lot

glutonium•16mo ago

ahahah..okee

Jochem•16mo ago

yup, this works:

  x = Math.random() * innerWidth;

  y = Math.random() * innerHeight;

  vX = Math.random() * 10 - 5;

  vY = Math.random() * 20 - 10;

  r = Math.random() * 30;

  x = Math.random() * innerWidth;

  y = Math.random() * innerHeight;

  vX = Math.random() * 10 - 5;

  vY = Math.random() * 20 - 10;

  r = Math.random() * 30;

glutonium•16mo ago

ooh wait lmaao

Jochem•16mo ago

you have to call random, it's not just a value you can use

glutonium•16mo ago

I didn't add the parentheses ;-; sorry

Jochem•16mo ago

no worries, stuff like this happens to everyone, no matter how long you've been programming 😄

glutonium•16mo ago

works..ty xD

glutonium•16mo ago

@jochemm how is it xD

glutonium•16mo ago

canvas is kinda fun

Jochem•16mo ago

looks good! I've never really played with canvas, I know you can do some wild things with it

glutonium•16mo ago

ahaha yee

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Why does my Log say the Value is NaN?