I have a CGI form (written in Perl) that has a "button".
When this button is pressed, it should let user (client),
download a file (without opening the file) from the server
to the client's computer.
I know the location in server from where the user will
download the file. User (client) should get a dialog box
(after pressing the button) and will be prompted to
store the file in their location of choice in their computer.
I found this questions asking how to do this in many different forums, so I will describe here how to implement a solution using PHP and AJAX.
The logical flow for the problem should be:
Write an event handler for the first drop down box to get …
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions.
Consider email address RFCs:
Look at HTML5 form input element (with type=email) regex pattern:
The viewer will learn the benefit of using external CSS files and the relationship between class and ID selectors.
Create your external css file by saving it as style.css then set up your style tags:
Reference the nav tag and set your prop…