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Web Programming
Web Programming is the category for programming for the Internet and World Wide Web. Q&A's include coding in technologies used for Browser, applet based applications, and more.
584 Questions
What is an XML-based connection?
Unless it is a narrow term for a very obscure game, piece of software, or application, there is no such thing as an XML-based connection; it wouldn't make sense, anyway. XML isn't used to connect to anything -- XML stores data.
How do you explain the Tags BR and HR?
br is a line break, hr is a horizontal rule.
br adds vertical spacing between elements on a page, much like the spacing between to paragraphs of text.
hr adds a horizontal line.
example:
before hr
after hr
How can you create a website for a cause with no strings attached ie absolutely free?
Depends on what you mean by no strings attached. Most free web services require you to put a small banner on your site saying it is hosted on suchandsuch.com or whatever, but if that doesn't bother you, then there are all sorts of free web hosts.
http://www.free-webhosts.com is an index for alot of different free web hosts, and you can even search them by what features you want. I used it for a few sites and will vouch for it.
How do you use HTML to create a login screen?
If you want specific pages to require a login, then you can use .htaccess and .htpasswd (check related links below for more info)
If you want to make your own login, linked to a database, you'll have to use another language, like PHP. (you can find a video tutorial in the related links)
How do you add a thing that allows people to create users on your website?
You will have to learn PHP and SQL (?)
Or you can ask someone to make it for you, but i think they want money for it though.
The Extensible Markup Language (XML) is a general-purpose markup language. It is classified as an extensible language because it allows its users to define their own elements. Its primary purpose is to facilitate the sharing of structured data across different information systems, particularly via the Internet. It is used both to encode documents and serialize data.
XML is a framework for defining markup languages:
- there is no fixed collction of mark up tags.
- each XML language is targeted as its own application domain, but the language will share many features.
- there is a common set of generic tools for processing documents.
Main features of XML:
- XML files are text files, which can be managed by any text editor.
- XML is very simple, because it has less than 10 syntax rules.
- XML is extensible, because it only specifies the structural rules of tags. No specification on tags them self.
DHTML means the web page or web application uses JavaScript and HTML DOM (Document Object Model) and possibly CSS.
A programmer can create dynamic web pages using these technologies. For example when I move the mouse over a image link, I can change the image.
ASP and ASP.NET pages are converted to HTML by a server.
How do you enable dynamic loading in PHP?
To enable dynamic loading of extensions, set enable_dl option in php.ini to 1
A snippet is a piece of code that has already been written for you by other developers. To save time and effort writing your own commands/functions, you can use code-snippets made by others to make your job easier.
The <ol> tag creates an ordered (i.e. numbered) list in HTML.
The term for logging in at a website is "log on to" or "log onto" (there is a slight semantic difference that is practically never observed).
Quality programs are tools that allow you to improve the Quality of your product.
There are two types of quality programs.
- A Quality Process or Standard
- Quality Assurance Software
Most reputable Software Quality Assurance Tools have at least some components of a quality system or standard.
You may have heard of a Bug Tracking System. This type of software is used to manage "bugs" that usually crop up during development and even after a software was released to the public. It helps you track bugs and assign the analysis and fixing to a development team member.
There's another more advanced type of quality software that is usually referred to as Issue or change management software. I've often heard it called a Program Support Log. It's usually more robust in terms of risk analysis and should include the ability to identify areas an Issue or Change can impact should it become an incident. For this reason, it's usually more proactive than a bug tracking system.
Here is a very broad definition of a Bug:
It is something technical in nature that is either not functioning or is functioning in an unexpected manner. Not everything that is identified as 'bug' will be a technical error. It could be an inquiry on a technical matter or a request for technical support. There are three types of bugs:
- Support -- A request for technical help on a particular matter.
- Error -- A technical problem.
- Enhancement -- a request for a change in how something functions. This should trigger a Change Request in your organization.
A Program Support Log (Change or Issue management software) is much better at tracking and controlling unplanned events that can and in almost all cases do crop up. Things or events that can blindside you. The ability to discuss issues before they become incidents is also usually present in this type of software. There are 4 types of Incidents:
- A Risk is something negative that may happen.
- An Issue is something that has to be done but there is not a final decision on what to do.
- A Change Request is seeking permission for a specific course of action which will change the project's schedule, cost or functionality.
- A Discussion Item usually precedes a categorization of an Issue, Risk, or Change request.
I've worked in a few Software firms where they used Issue Management software to manage bugs only because it allows you to be more proactive, and brings more intelligence to the whole Quality Assurance process.
How do you add right click protection to a website?
Place this code on your website: <SCRIPT TYPE="text/javascript">
var message="Protected image can not be saved.";
function click(e) {
if (document.all) {
if (event.button 3) {
alert(message);
return false;
}
}
}
if (document.layers) {
document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown=click;
</SCRIPT>
It is a matter of personal preference. Each one comes with its plus and minus points. You need to choose according to your requirements, skills and preference.
You can counter the styles declared for the general element type. For example, if the earlier CSS declared "background-color: #FF0000;" for all "div" elements, but you want a specific "div" tag to have a different background color, you can add "background-color: #00FF00;" as a declaration to that specific "div" tag. A live example: ----
How do you write in the right side of the image in HTML?
Add float:left; to the style element of the image. All following text will flow around the image on the right side.
What would the consequences of incorrect form validation?
The purpose of form validation is to ensure that valid data is input provided by the user of the web page.
If the data provided in the form is incorrect and used without proper validation we may end up using inconsistent data that would be of no use to us.
Let me explain with an example. Let us say you are designing a page where the user enters his details to register to use your site, you need to ensure that he enters a valid email address, telephone number etc. Let us say he enters xxyydsdf in the email text field and abcdedf in the phone number field, your form should be in a position to find it out and tell the user that the data he entered is wrong. Also our code should stop him submitting the information.
Else, on some day when the user has used the website for some malicious purpose and you need his contact information which the law enforcement authorities request, if you provide xxyydsdf as email and abcdedf as phone number it would be the worst thing that can happen to you.
