I'm having some trouble with the return function question , help!

Question

hey, I'm stuck trying to figure out the correct syntax for the function question in the js foundations functions question about returning the length of the array if the array is a number string or undefined. Any help would be appreciated!

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)
      {
       if array=["1,"ten", undefined]

       return(array.length);

      }


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

Answer 1 · 2015-02-18T19:01:36Z

February 18, 2015 7:01pm

Hi Mandana,

Around line 17, create a function named 'arrayCounter' that takes in a parameter which is an array. The function must return the length of an array passed in or 0 if a 'string', 'number' or 'undefined' value is passed in.

Almost, we need to create function named arrayCounter that takes "array" in a parameter, and the value passed is "string" OR "number" OR "undefined" which will return 0. To make it easier, we can combine the 3 blocks into one line to use || (means OR). Then we return the length of the array in the end of the line.

Here's simple solution:

function arrayCounter(array) {
    if (typeof array === "string" || typeof array === "number"|| typeof array === "undefined") {
      return 0;
    } else {
      return array.length;
    }
}

Hope you get it. :-)

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mandana mirzaii

mandana mirzaii

I'm having some trouble with the return function question , help!

1 Answer

Salman Akram

Salman Akram