Twitch.tv variable access problem. Please Help!

Twitch.tv variable access problem. Please Help!
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#1

Hello on line 30 of my javascript I log an array to the console. on line 31 i try to access a specific item in that array and the result is always undefined. I don’t know how this is possible.


#2

Please share your code, otherwise we are not going to be able to check it.


#3

#4

This is because $.getJSON is asynchronous. The for loop will complete before the data all comes back.
For example, do this:

console.log(isStreaming);
console.log(i);
//console.log(isStreaming[i]);

You will see that i is always 8. isStreaming[8] is undefined.

For more information on this specific issue, see this:

I would greatly recommend you learn more about asynchronous JavaScript and callbacks. It is an essential “feature” (or as some call it “Callback Hell”) of Javascript.

Here is a great free tutorial:
http://thenetninja.co.uk/courses/asynchronous-javascript-tutorial