How can I avoid type-conversion (object variable to string)

[Wolfram Heinz]

Hi there,
How can I avoid type-conversion (object variable --> string) when
passing an object variable to a function?

Example:
-->
catch(myerrorob ject)
alert(myerrorob ject.filename);
{
my_function('bl a: ',myerrorobject );
}
<---

I get the "myerrorobject. filename" in the alert-Box, but I get an
"undefined"-error, if I try to access myerrorobject.f ilename (or other
properties) in the function "my_functio n".
Why?

Regards,
Wolfram Heinz

[Michael Winter]

Wolfram Heinz wrote:

[snip]

-->
catch(myerrorob ject)
alert(myerrorob ject.filename);
{
my_function('bl a: ',myerrorobject );
}
<---

I get the "myerrorobject. filename" in the alert-Box, but I get an
"undefined"-error, if I try to access myerrorobject.f ilename (or other
properties) in the function "my_functio n".
Why?

If that's your literal code, it's because myerrorobject doesn't exist
when the function call occurs. The code will be parsed as:

catch(myerrorob ject) {
alert(myerrorob ject.filename);
}
{
my_function('bl a: ', myerrorobject);
}

Notice that there are two blocks. The catch identifier will only exist
in the first.

To be honest, I'm surprised that would work at all. A catch clause
must be followed by a block unlike if, for example, which may be
followed by either a statement or a block.

If what you posted is a typo, I think you'll have to post a more
complete example.

Mike

--
Michael Winter
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