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

Posted by Liv Allen
Liv Allen
1,972 Points

how do I call a function?

I don't quite know what I'm supposed to do for this question. It ask to call the function by giving an age in the space for a parameter. I'm not entirely sure how to identify what to do

script.js 
function random_age(age) {
  Math.floor(Math.random() * age);
}
random_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>

2 Answers

Kelly von Borstel
Kelly von Borstel
28,880 Points
Kelly von Borstel
Kelly von Borstel
28,880 Points

Hi, Liv. You call a function by following the the function name (in this case 'random_age') with open and close parentheses. The space for parameter is between the parentheses. When you type an age between those parentheses, that value will be used in place of 'age' in the function body. Here's the code — I've put question marks where they want you to enter an age.

function random_age(age) {
  Math.floor(Math.random() * age);
}
random_age(???);
Liv Allen
Liv Allen
1,972 Points

thank you!!

Per Karlsson
Per Karlsson
12,683 Points
Per Karlsson
Per Karlsson
12,683 Points

Don't forget to supply a parameter for the function when calling it.

For example: random_age(5);