Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Using For Loops with Arrays

Begana Choi
PLUS
Begana Choi
Courses Plus Student 13,122 Points

my code doesn't work as a video, from the start.

hello, I followed this video and it doesn't work from the start that I couldn't see any list on the webpage. I followed the video though, but it still doesn't work. please check my code and give some tips what's wrong with :(

var playList = [ 'I Did It My Way', 'Respect', 'Imagine', 'Born to Run', 'Louie Louie', 'Maybellene' ];

function print(message) { document.write(message); }

function printList( list ){ var listHTML = '<ol>'; for( var i = 0; i < list.length; i += 1 ) { listHTML += '<li>' + list[i] + '</li>'; } listHTML += '</ol>'; }

printList(playList);

What is the var for "message"?

2 Answers

Hi,

You forgot to add end of the function printList(list): print(listHTML); So your function should look like this:

function printList(list) {
  var listHTML = '<ol>';
  for (var i = 0; i < list.length; i += 1) {
    listHTML += '<li>' + list[i] + '</li>';
  }
  listHTML += '</ol>';
  print(listHTML);      // You need to add this line on your code
}

printList(playList);

So I removed the message function as it was keeping the code from posting. I then made a line of code to add that to wherever the list needs to be. The example should be listed below. If you get some time to post more about the practice and requirements I may be able to help out more.

`var playList = [ "I Did It My Way", "Respect", "Imagine", "Born to Run", "Louie Louie", "Maybellene" ];

function printList(list) { var listHTML = "<ol>"; for (var i = 0; i < list.length; i += 1) { listHTML += "<li>" + list[i] + "</li>"; } listHTML += "</ol>"; document.getElementById('insert-id-tag-here').innerHTML = listHTML }

printList(playList);`