Web Scraper and Web Macros FAQs

Page History: What are optional fields?


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Page Revision: 2008/04/02 23:24


Optional fields are not what you think. You should only check fields as optional when you HAVE to. Yes this checkbox should not be so seemingly innocuous, but it is and you should hardly ever check it. Each optional field increases extraction time by a factor of 2.

You should only check a field optional if its tags are similar to other fields and you sometimes want to act as if the field is not there at all. For example, three fields are separated by
with a fourth field seperated by a tag:

<TD><BR>Craig<BR>Phoenix<BR>AZ<BR></TD><TD></TD>Velocityscape

However, sometimes Name is not there:

and so City goes into the Name column and State goes into the City column.
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