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

Begana Choi
PLUS
Begana Choi
Courses Plus Student 13,124 Points
Posted by Begana Choi
Begana Choi
Courses Plus Student 13,124 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);

David Loder
David Loder
4,901 Points

What is the var for "message"?

2 Answers

Essi Kivivuori
Essi Kivivuori
16,663 Points
Essi Kivivuori
Essi Kivivuori
16,663 Points

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);
David Loder
David Loder
4,901 Points
David Loder
David Loder
4,901 Points

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);`