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JavaScript Treehouse Club - MASH MASH - JavaScript The Structure of Functions - Part 3 of 3

Jarod "Todd" Foreman
Jarod "Todd" Foreman
2,039 Points
Posted by Jarod "Todd" Foreman
Jarod "Todd" Foreman
2,039 Points

Trying to solve challenge "Call the function by giving an age in the space for a parameter.?"

I am having a problem figuring this one out. I keep getting the error: Bummer! There was an error with your code: ReferenceError: Can't find variable: age

This is my script: function random_age(age) { Math.floor(Math.random() * age); } random_age(age);

Help Please, Todd

script.js 
function random_age(age) {
  Math.floor(Math.random() * age);
}
random_age(age);
index.html 
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Futuristic MASH</title>
    <link href="normalize.css" rel="stylesheet">
    <link href="style.css" rel="stylesheet">
  </head>
  <body>
    <h1 class="logo"><img src="img/mash-logo.svg" /></h1>
    <p class="instructions">Fill in the blanks and your future will be foretold.</p>
    <form action="" method="post" id="mash">
      <div class="choice-bucket">
        <h4 class="highlight">What's your future pet?</h4>
        <input name="pet[]">
        <input name="pet[]">
        <input name="pet[]">
        <input name="pet[]">
      </div>
      <input type="submit" value="Tell my fortune">
    </form>

    <script src="script.js"></script>

  </body>
</html>
Vlad Legkowski
Vlad Legkowski
9,882 Points
Vlad Legkowski
Vlad Legkowski
9,882 Points

Hi Jarod,

If you want to pass a parameter named age to a function, you need to assign some value to it.

Just think about it, what are you expecting to see when passing age as your param?

Surely you want to get some (numerical) result.

Jarod "Todd" Foreman
Jarod "Todd" Foreman
2,039 Points
Jarod "Todd" Foreman
Jarod "Todd" Foreman
2,039 Points

Thank you Vlad, Make me think heh...I got it. I appreciate you answering my post. Sincerely, Todd

2 Answers

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

The name "age" is not a variable outside of the function.

While it is a parameter of the function and can be reference there, it has not been defined outside the function.

But what the challenge is asking for you to add as an argument in the call is just a number.

Jarod "Todd" Foreman
Jarod "Todd" Foreman
2,039 Points
Jarod "Todd" Foreman
Jarod "Todd" Foreman
2,039 Points

Thank you Steven, appreciate you responding to my post. Again, thanks. You have helped. Sincerely, Todd