400342 - for (node in nodes) changes the nodes

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Ole Ersoy]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.3) Gecko/20070417 Fedora/2.0.0.3-4.fc7 Firefox/2.0.0.3
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.3) Gecko/20070417 Fedora/2.0.0.3-4.fc7 Firefox/2.0.0.3

This alert never gets triggered and there are 3 nodes in nodeArray:

for (node in nodeArray)
{
    if (node == nodeArray[1])
    {alert("match")}
}

It seems like the nodes in the node array are changed by using a for in loop.  I caught this by looking for a type one node in the array.  I know that nodeArray[1] is an instance of a type 1 node.  However, when I look for it like this:

if (node.nodeType == 1) ... it is never found.  If I do an alert for node.nodeType for each iteration of the loop, all of the messages say "undefined".  Before doing this I tested that nodeArray[1].nodeType == 1, so I was expecting the second alert to say "1".






Reproducible: Always

Steps to Reproduce:
Just create an array of dom nodes with 2 or more nodes and try this:

for (node in nodeArray)
{
    if (node == nodeArray[1])
    {alert("match")}
}

The alert will never be triggered.  Also the type of the nodes will not be "undefined", even if they are type 1 nodes.



Actual Results:  
See steps to reproduce

Expected Results:  
See steps to reproduce

Comment 1

[Jesse Ruderman]

Can you attach a file (HTML with script) that demonstrates the bug?

Comment 2

[lexual]

No response from reporter.