function

Question

Question asks: "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."

I don't know why it says incorrect:

<!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(name){

    name = ['Hello']

    if(typeof name === 'undefined'){


    return 0;
    } }
  console.log(arrayCounter());






</script>

</body> </html>

Answer 1 · 2014-06-12T18:17:10Z

June 12, 2014 6:17pm

Your function takes in an argument called, "name" and redefines "name" to equal ['Hello']. Instead, it should probably check the original argument. Also, your 'if' statement only checks to see if name is undefined, but the challenge asks you to check if it is a string or a number as well. Try something like this:

function arrayCounter(name){

    // This shouldn't be here
    // name=['Hello']

    // Check if name is undefined, a string or a number
    if (typeof name === undefined || typeof name === 'string' || typeof name === 'number'){
        return 0;
    }

    // You need to return the length of the array
    return name.length;
}

I'm not sure if this will work exactly, but I think it is at least closer to the solution.

Answer 2 · 2014-06-12T18:29:54Z

June 12, 2014 6:29pm

Thank you! I got it

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