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JavaScript JavaScript Foundations Numbers The Math Object

Paul Laudeman
Paul Laudeman
9,385 Points
Posted by Paul Laudeman
Paul Laudeman
9,385 Points

Hi, I entered in my code an assignment that works (I checked it in the console), but it won't pass the check.

var chance = Math.round(Math.random(0,20))

index.html 
<!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);

      /*
      The JavaScript Math object has the following
      constant (among others):
      Math.PI
          Approximately 3.14159. Pi (π) is used
          to determine the circumference of a circle
          given its diameter by multiplying the diameter
          by π. Geometery refresher: the circumference
          of a circle is the distance around the outside
          edge. The diameter is the width of the circle.

      The JavaScript Math object also has the following
      methods (among others):
      Math.random()
          Returns a random number between 0 and 1
      Math.max(a, b, ...)
          Returns the largest value of the passed
          arguments
      Math.floor(a)
          Returns the value of a number rounded down to
          the nearest integer
      */

      var circumference = diameter * Math.PI;
      var chance = Math.round(Math.random(0, 20) * 10);

    </script>
  </head>
  <body>
    <h1>JavaScript Foundations</h1>
    <h2>The Math Object</h2>
    <script src="viewer.js"></script>
  </body>
</html>
Paul Laudeman
Paul Laudeman
9,385 Points
Paul Laudeman
Paul Laudeman
9,385 Points

The quiz step: "Create a variable named "chance" and assign it a random number between 0 and 20 to it using the Math.random() method."

2 Answers

Cisco Rendon
PLUS
Cisco Rendon
Courses Plus Student 35,809 Points
Cisco Rendon
Cisco Rendon
Courses Plus Student 35,809 Points

Paul,

try it this way, remove the parentheses in your last statement. If you remove it, the equation should be good

var chance = Math.random()*20+1;

see if this works for you.

Paul Laudeman
Paul Laudeman
9,385 Points
Paul Laudeman
Paul Laudeman
9,385 Points

Hi Cisco,

Thank you! That made the test pass.

Have a great day,

Paul

Cisco Rendon
PLUS
Cisco Rendon
Courses Plus Student 35,809 Points
Cisco Rendon
Cisco Rendon
Courses Plus Student 35,809 Points

Not a problem... If you have any questions, please feel free to ask away. You can follow on facebook where I will start putting up little tips and tricks very shortly... Have a great day =)