I started to test my web site on google chrome and

'cannot call method 'join' of null'

appears when doing this:

var sChoices = oQuestion.aChoiceRand.join("");

In IE and FF works well. What I'm trying to do with this code is to join all the aChoiceRand array elements in a string without any separators. How can I solve this?

I started to test my web site on google chrome and

'cannot call method 'join' of null'

appears when doing this:

var sChoices = oQuestion.aChoiceRand.join("");

In IE and FF works well. What I'm trying to do with this code is to join all the aChoiceRand array elements in a string without any separators. How can I solve this?

• javascript
• google-chrome

Share Improve this question Follow edited Oct 6, 2020 at 12:55 Alex 1,58011 gold badge1515 silver badges2727 bronze badges asked May 16, 2009 at 7:42 bobyubobyu

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1 Answer 1

Sorted by: Reset to default 3

The problem's cause must be earlier, when oQuestion.aChoiceRand gets assigned: you think it's assigned to an array (and apparently IE and FF agree with you), Chrome is telling you that it's null instead. We can't really help without seeing the code that's supposed to assign oQuestion.aChoiceRand its value...