where am i going wrong

Question

task: 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.
My solution:  
```javascript
function arrayCounter (number, string){
        if (typeof string === 'undefined'){
                return string == 0;
        }
         if (typeof number === 'undefined'){
            return number ===0;
        }  
  };
```

Andrew McCormick · Accepted Answer

Neslee, 
Good try, but you have several things going on here:    
- first you have two arguments being passed into the function. where you should just have one that you plan to be an array.   
- second in your return statement you are using comparison equality operators which would only return a boolean. ( return foo === 0 vs return 0   
- you should be testing the one argument you pass in 3x.   First to see if it's a string, then a number, and finally to see if it's undefined.   
- finally the question asks if the argument is an array then return it's length.  no where are you attempting to do that.   
you might want to rewatch the videos for this section.   Of course if you just want the answer you can search the forum and find this: the answer (https://teamtreehouse.com/forum/unable-to-get-it-through)

Neslee Rodillo · Answer

is this what you mean (i am soo completely clueless with Javascript):
 '''javascript
   function arrayCounter (array){
        if (typeof array = 'undefined'){
                return 0; }
      };'''

Tünde Matócza · Answer

I'm just giving a clue: The parameter of the function arrayCounter should be an array, not (number, string).

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Neslee Rodillo

Neslee Rodillo

where am i going wrong

3 Answers

Andrew McCormick

Andrew McCormick

Neslee Rodillo

Neslee Rodillo

Tünde Matócza

Tünde Matócza

Neslee Rodillo

Neslee Rodillo