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JavaScript JavaScript Foundations Functions Return Values

Christian Lawrence
Christian Lawrence
3,941 Points
Posted by Christian Lawrence
Christian Lawrence
3,941 Points

Return Values

I can't work out what I'm doing wrong here, seem to keep getting the wrong return value.

The function must return the length of an array passed in or 0 if a 'string', 'number' or 'undefined' value is passed in.

Bummber! Wrong value returned from 'arrayCounter("string")' it should be 0

function arrayCounter (dog) { if (typeof dog === 'undefined'){ return 0; } return dog.length; } arrayCounter('bulldog');

2 Answers

Ron McCranie
Ron McCranie
7,837 Points
Ron McCranie
Ron McCranie
7,837 Points

It wants you to test if it's undefined, string, or number. Try this:

function arrayCounter(stuff) {
        if(typeof stuff === 'string' || typeof stuff === 'number' || typeof stuff === 'undefined') {
          return 0;
        } else {
          return stuff.length; 
        }
      }
Christian Lawrence
Christian Lawrence
3,941 Points
Christian Lawrence
Christian Lawrence
3,941 Points

Cheers I understand now, didn't know about the ||