Closed
Bug 182614
Opened 22 years ago
Closed 22 years ago
JavaScript seems to be ignoring global variables
Categories
(Core :: DOM: Core & HTML, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 114461
People
(Reporter: madbobsemporium, Assigned: jst)
Details
(Keywords: testcase)
Attachments
(1 file)
|
(deleted),
text/html
|
Details |
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826
Using the following example, I get a JavaScript error of array_length is not
defined.
<html>
<head>
<title>Untitled</title>
</head>
<script language="JavaScript">
var array_length = 10;
var numbers_array = new Array (array_length);
function create_numbers () {
var i = 0;
while (i < array_length) {
numbers_array[i] = Math.round (Math.random() * 100);
i++;
}
show_numbers();
}
function show_numbers () {
var i = 0;
while (i < array_length) {
document.write ("<br> numbers_array [" + i + "] = " + numbers_array[i]);
i++;
}
}
</script>
<body onLoad="create_numbers()">
</body>
</html>
I have reported this as a major bug as I think (apparently) not supporting
global variables after first use is *very* odd.
Reproducible: Always
Steps to Reproduce:
1.run the above html page
2.read the error (usually occurs with reference to the second function
show_numbers()
3.
Actual Results:
numbers_array [0] = 42 plus error mentioned above
Expected Results:
display something like the following:
numbers_array [0] = 47
numbers_array [1] = 14
numbers_array [2] = 17
numbers_array [3] = 89
numbers_array [4] = 99
numbers_array [5] = 91
numbers_array [6] = 49
numbers_array [7] = 95
numbers_array [8] = 70
numbers_array [9] = 16
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Comment 1•22 years ago
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It works for me if I move the function call into the body instead
calling from onLoad.
...
<body>
<script language="JavaScript">
create_numbers();
</script>
</body>
</html>
Tested with
Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.2) Gecko/20021126
Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.2b) Gecko/20021029 Phoenix/0.4
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Comment 2•22 years ago
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Confirming bug with Mozilla trunk binary 2002112711.
Reassigning to DOM Level 0 and cc'ing Boris.
I believe this bug is may be a duplicate of bug 114461,
"document.open() clobbers JS context", or may be invalid.
When you do document.write() in an onload handler, Mozilla implicitly
does a document.open(). I will let Boris or others comment further.
What I do know is that if you change the document.write() in your
example to an alert() instead, the testcase works fine.
On the other hand, IE6 is able to run your testcase as is, so...
Assignee: rogerl → jst
Status: UNCONFIRMED → NEW
Component: JavaScript Engine → DOM Level 0
Ever confirmed: true
QA Contact: pschwartau → desale
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Comment 3•22 years ago
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Note that this does not work in NS4 either
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Comment 4•22 years ago
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Yep, it's a dupe.
*** This bug has been marked as a duplicate of 114461 ***
Status: NEW → RESOLVED
Closed: 22 years ago
Resolution: --- → DUPLICATE
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Description
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