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

Posted by Clinton Tessin
Clinton Tessin
10,084 Points

I can not get my JS to work.

https://w.trhou.se/slmo18z78s

I can't find my mistake anywhere.

2 Answers

Steven Parker
Steven Parker
240,449 Points
Steven Parker
Steven Parker
240,449 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.

Clinton Tessin
Clinton Tessin
10,084 Points

Thank you!

Tabatha Trahan
Tabatha Trahan
21,422 Points
Tabatha Trahan
Tabatha Trahan
21,422 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.