Once you have an HTML form up and running, you will often want to make sure that all the important fields are filled in.
For example, if you are going to send an email confirmation letter, the email address should be included in the form fields, and it should be an email address that works.
", because when you say you're validating the form, you're really confirming the inputs to the form are formatted correctly for the form.
Likewise, validating a function's arguments are valid for that function is simply confirming the inputs are correctly formatted.
If the second box is NOT "Kit", the flag is set to false. A little elementary logic will show you the decision tree.
This function does not care what flag's current value is -- it simply sets flag to false at that step.
With that said, there are a few things we can do on the front end to make the experience better for everyone.
The way you should handle this is to have the majority of the error checking done with Java Script. You then recheck the vital elements of the form with the CGI.
Most error checking programs check each field one at a time, and display one error at a time.
In this post we’ll talk about few common approaches for validating email addresses in Java Script.
First, when validating email addresses I believe it’s better to error on the permissive side.