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

2 Answers

Steven Parker
Steven Parker
218,814 Points

It's on line 16, where you have this:

  for ( var i = 0; i < list.length; i += 1) {

The term "list" has not been defined anywhere. It looks like you might want "songs" there instead.

Tabatha Trahan
Tabatha Trahan
21,410 Points

It looks like the issue may be with this function:

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

You use the parameter songs to accept a list, but you call the length method on a variable called list (which is never declared or initiated anywhere else. Give that a shot to see if it works.