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JavaScript

Posted by Kurt Bouma
Kurt Bouma
11,049 Points

Javascript Foundations math object

<!DOCTYPE html>
<html lang="en">
  <head>
    <title>JavaScript Foundations: The Math Object</title>
    <link rel="stylesheet" href="core.css">
    <script>
      var diameter = 5.75,
          a = 17,
          b = 42,
          c = 1337,
          ageIfILiveToYear2100 = (new Date(2100, 0, 1) - new Date(1995, 5, 16, 7, 20)) / (1000 * 60 * 60 * 24 * 365.242);
      var circumference =

I realize I need to complete the code after the equals, which I've tried, but I keep getting the same error that there is no variable circumference defined...

Kurt Bouma
Kurt Bouma
11,049 Points

Apparently I did something wrong when trying to get that to show up as code instead of text. Any pointers there would be appreciated too!

James Barnett
James Barnett
39,199 Points

You used single quotes instead back ticks ``` located on the key right of the 1 key on a standard US keyboard.

Kurt Bouma
Kurt Bouma
11,049 Points

Thanks. Did you fix that or is the treehouse forum just that intuitive?

James Barnett
James Barnett
39,199 Points

I fixed it for you.

2 Answers

James Barnett
James Barnett
39,199 Points
James Barnett
James Barnett
39,199 Points

So for this task you need to know 2 things:

  • the math formula for circumference which is: circumference = pi * diameter
  • the way you reference pi in JavaScript which is: Math.PI
Gianni Zamora
Gianni Zamora
9,547 Points
Gianni Zamora
Gianni Zamora
9,547 Points

i have the same problem do you have any tips to what I can do to answer this correctly?