Web Development Information
Functions and Subroutines in ASP
If you read our Tutorial on Include Files (SSI) then you learned how to encapsulate ASP code within include files and the benefits it brings us.
As developers, we should endeavour to make our lives easier wherever possible... no one wants to re-invent the wheel after all.
Functions and Subroutines exist to not only save us time, but to bring power to our ASP.
They are just another way of encapsulating code, but have a lot more functionality than just 'saving some code for later'.
First, let's look at Functions... Imagine a balloon salesman in the street. We've all seen them they require one piece of information when you buy a balloon, the colour.
Let say we asked for a red balloon... The balloon salesman armed with this 'information' then does a pretty basic action... he hands you the balloon. The balloon you received is a direct result of the information you gave the balloon seller.
Functions are just the same... they return to you a value based on the information you provided. Lets look at an example Function: -
<%
Function getBalloon(strColour)
Dim Tempstr
strColour = lcase(strColour) 'This converts the value lowercase.
Select Case strColour
Case "red" Tempstr = "Here is your red balloon"
Case "yellow" Tempstr = "Here is your yellow balloon"
Case "green" Tempstr = "Here is your green balloon"
Case "blue" Tempstr = "Here is your blue balloon"
Case Else Tempstr = "Sorry, we have sold out of that Colour"
End Select
getBalloon = Tempstr
End Function%>
Server Side Includes (SSI) with ASP
People often have identical sections of code spread throughout many ASP pages, typically code at the top of the page (usually referred to as the header) and the lower part of the page (the footer). Similarly, you may have code that performs a certain set of instructions that you are repeating across multiple pages. Consider an example:-
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Ecommerce for Beginners
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What is Blogger.com?
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How To Write More Powerful Online Text
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What Hosting Companies Dont Tell You, Could Hurt You?
Did you know that hosting companies overcrowd their servers despite all the issues caused by servers running hundreds of accounts? Are you aware of what happens if your website is hosted on a server that?s overcrowded? You?re probably thinking to yourself, ?what do you mean overcrowd their servers?? Overcrowded servers mean big money for your hosting company, but also big problems for your website.
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Adding Word Rich Content to Your Website
You have permission to publish this article electronically, in print, in your ebook or on your web site, free of charge, as long as the author bylines are included.
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The Internet is a remarkable publishing medium. With just a little effort, you can make your web pages visually irresistible by playing with color, shapes and text. Whether your websites are already launched or you're ready to create your first few, use the 3 simple steps below to kick things up a notch and make your sites professional and appealing.
The Power Is In The Pipes: How To Get Maximum Leverage From Your Website
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Things to Consider Before Starting a Website
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Web Designer? You Dont Need No Stinkin Web Designer!
RIVERSIDE, CA August 4, 2004 ?- ?Historically, small business owners have had a limited number of options to choose from when it comes to the development of an on-line presence,? says Pat Spinelli, owner of The Web Site Tutor, a Riverside, California 1. web site design and training firm.
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