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I *used* to do form validation with javascript exclusively, until lurking around the monastery for a few months and reading the arguments against it, and for good reasons. However, I now use a combo. I do a full validation (as part of my untainting routines) on the server-side, but first doing a quick check of certain fields in javascript to avoid the roundtrips to the server. The client-side checks are more to protect the "client" and the server-side check are to protect me and the server.

As my validation needs are pretty straight forward, I rolled my own little module with the help of some of the good monks, and it works fine. But do recommend you read up on the aforementioned CGI resources.


—Brad
"Don't ever take a fence down until you know the reason it was put up." G. K. Chesterton

In reply to Re^2: How do I write a CGI script with form validation? by bradcathey
in thread How do I write a CGI script with form validation? by blazesixty

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