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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Two-Dimensional Arrays

Posted by Ben Ahlander
Ben Ahlander
7,528 Points

Why isn't this working?

var playList = [
  ["Yolo", "Ben Ahlander"],
  ["Bannana Pancakes", "Jack Johnson"],
  ["fdafdasf","fadfdasf"]
];

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

function printSongs( songs ) {
  var listHTML = '<ol>';
  for ( var i = 0; i < songs.length; i += 1) {
    listHTML += '<li>' + songs[i][0] + " by " + songs[i][0] '</li>';
  }
  listHTML += '</ol>';
  print(listHTML);
}

printList(playList);

Moderator Edit: Added Markdown to the post so the code is readable in the Community. Please refer to the Markdown Cheatsheet for the proper formatting before posting code in the Community.

3 Answers

james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points

your function is printSongs, but you call printList. also when it creates the html with the song and artist, you are adding the song twice and the artist not at all.

Tyler Nilsson
Tyler Nilsson
10,106 Points
Tyler Nilsson
Tyler Nilsson
10,106 Points

Yeah james south hit the head of the error buddy.

Barry Harding
PLUS
Barry Harding
Courses Plus Student 1,711 Points
Barry Harding
Barry Harding
Courses Plus Student 1,711 Points

var playList = [ ["Yolo", "Ben Ahlander"], ["Bannana Pancakes", "Jack Johnson"], ["fdafdasf","fadfdasf"] ];

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

function printSongs( songs ) { var listHTML = '<ol>'; for ( var i = 0; i < songs.length; i += 1) { listHTML += '<li>'+songs[i].join(' by ','<br>')+ '</li>'; } listHTML += '</ol>'; print(listHTML); }

printSongs(playList);