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JavaScript JavaScript Foundations Functions Return Values

hakan Gülay
hakan Gülay
8,489 Points

about question

http://teamtreehouse.com/library/return-values Hi, ı really couldnt do anything about this question.

function arrayCounter(x[a]){
if(typeof x[0]==='undefined')
{
return=0;
}
return x.length;

}

I may have drool :) can you please help me ?

2 Answers

Hi hakan,

The function takes an array as it's argument:

<script>
function arrayCounter(array) {

}
</script>

The function must return the length of an array passed in

<script>
function arrayCounter(array) {
    return array.length;
}
</script>

or 0 if a 'string', 'number' or 'undefined' value is passed in.

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

Jeff

hakan Gülay
hakan Gülay
8,489 Points

thank you so much