Array index

Archived
1

Trying to get a value from an array of audio tracks. I cant use the index from AudioplayerEvent because it always starts at O even if you decide to start playing from track 3 so I’ve put an index value in the array, an integer, to identify the track so the screen can be accurate.
Num:“0”
When i try to access the value i get the debugger error “non-numeric array index not allowed” code excerpted below, which i dont understand, can someone explain?
thanks

item=[
			{
		Url: "http://www.xxx.com/roku/songs/song.mp3",
		....other parameters
		Num:"0"
	   },
	   {
	   .....other tracks
	  	}]
	   

		if type (msg) = "roAudioPlayerEvent"
		if msg.isListItemSelected()
		m.song = msg.GetIndex()
      	end if
      	if msg.isStatusMessage() then
		if msg.getmessage() = "start of play" 
		m.song = item["Num"]
		scr.SetContent(item[m.song]) 
      	end if
      	end if

231: End Function
Attempt to use a non-numeric array index not allowed. (runtime error &he8) in ...c/pkg:/source/audioscreen.brs(219)

219: 		m.song = item["Num"]
2

function getIndex(arr, value)
i = 0
for each item in arr
if item = value
return i
end if
i++
end for
return invalid
end function

3

Why would you use FOR EACH? Isn’t the order unreliable? Why not use FOR i = 0 TO ARRAY.COUNT() -1? And then you have make sure the values are even compatible types.