It's returning 0 like the instructions say, but still red error...

Question

Here's my code so far:

  function arrayCounter(x){
    if (typeof x === 'undefined') {
      return 0; 
    }

    return x.length;
  }

  arrayCounter(x);

It's returning a 0 in the console per instruction, but still not passing it.

index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <title>JavaScript Foundations: Functions</title>
    <style>
      html {
        background: #FAFAFA;
        font-family: sans-serif;
      }
    </style>
  </head>
  <body>
    <h1>JavaScript Foundations</h1>
    <h2>Functions: Return Values</h2>
    <script>   


       function arrayCounter(x){
        if (typeof x === 'undefined') {
          return 0; 
        }

        return x.length;
      }

      arrayCounter(x);



    </script>
  </body>
</html>

Answer 1 · 2014-12-10T23:54:14Z

December 10, 2014 11:54pm

Hi RIchard!

The challenge wants you to check if x is undefined OR a string OR a number, so you need to check to see if it is 1 of those 3 values. There are a couple of ways to do this, like multiple if-statements, or you can use the logical or ( || ) and repeat your typeof check 3 times in one if-statement.

Hope that helps. Let me know if you have any questions!

-Andrew

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Richard Barkinskiy

Richard Barkinskiy

It's returning 0 like the instructions say, but still red error...

1 Answer

Andrew Kiernan

Andrew Kiernan

Richard Barkinskiy

Richard Barkinskiy