Presently, the distance learning system has been developing all the time. There is no longer a problem to get a good education remotely. Online learning has several advantages, such as learning at own pace, freedom and flexibility, accessibility, and social equality. The Web offers a variety of services to help gaining new knowledge.
A couple years ago, I worked together with Ken Thompson on the interactive graphics language that was developed by Gerard Holzman in Bell Labs. I was typing quicker, therefore, I sat at the keypad, and Ken stood behind me. We worked quickly and when the compiler gave out an error, I started reflexively digging in a problem, studying the call stack, program output and launching a debugger, and so on. But Ken simply was standing nearby and thinking, ignoring me and a code, which we just wrote. Soon I noticed regularity that Ken often understood the problem faster than me and was saying, “I know, what is going on”. Usually, he was right. I understood that Ken built the mental model of a code, and when something was broken, it was the error in this model. He was thinking of how this problem could arise, so he explained what was wrong with model, or where our code could mirror this model incorrectly.
Today, I would like to talk about Firefox add-ons for the web development that can extend the browser’s core functionality, because I believe that these add-ons are very important for any web developer and web designer.
Many of these add-ons you already know!
Let's start with the most popular and powerful a wed development tool:
This article opens a series of articles, in case, if it will be found interesting, because the first rule of public speaking says: tell people that, what they are interested in!
If you have never experienced public speaking or are afraid to do it – here is “under the cut”. If you consider yourself an experienced speaker, the second article of this series will be for you.
Today’s article is going to be more dedicated to the speech, and less to its contents. If the future comments show, that the composition of the speech needs to be explained (the problem statement -> the solution -> the selection process -> the chosen solution -> the result), or the basics of public speaking (avoid using “hum and haw”, junk words and finishing phrases with non-normative interjections) – I’ll do it next time.
Over a year ago one user of StackOverflow programming site asked for help concerning this issue. Namely, they have the employee with the last name Null at the firm. The problem is that because of his name falls a corporate search application, if the employee’s name will be used as search query (it has happened very often recently). Error:
<faultstring>coldfusion.xml.rpc.CFCInvocationException: [coldfusion.runtime.MissingArgumentException : The SEARCHSTRING parameter to the getFacultyNames function is required but was not passed in.]</faultstring>
The recent Visual Studio 11 Beta version has a new and major built-in feature of the future C # 5 - asynchronous programming using async/await. In this article I would like to structure and examine this quite interesting new tool and share the results with you.
Why is it needed?
C# is actively developing language. Each its version has interesting features that really simplify the writing quality of understandable code. For example, Linq considerably simplified the writing of filters for collections and sql queries in the code. Now the turn came for asynchrony.
That's how the music sellers see their average customer, downloading free songs.
Scott Cohen is the co-founder of digital distribution company The Orchard. This company distributes 20% of music on the web. However, this is not Napster: Cohen earns money by selling the music content, and this man thinks that the current model of music sales is out of date, and it is in urgent need of replacement.
Once a client has asked me to set a countdown timer on his website.
He explained that it is needed for the users in order to take advantage of promo that is time-limited and as well to improve his website.
I began searching different options online. However, whatever I have found so far, I did not like it. There were various plugins for jQuery, but any of them did not fit the style. I needed a plugin that would look aesthetically in the existing design and visually tell the user how much time he still has left.
In recent years there has been a tendency to make out the graphics in the form of fonts. It really simplifies a lot. But there are difficulties of a practical nature: Where do I get the font with the symbols that are needed for me? Most often it turns out that you need a couple of icons from one font, a couple icons from another, etc. Moreover, each font designer has his own vision in terms of mapping glyphs. It is very inconvenient to plug in all that.
I got an idea to build a tool that could make font by a simple click of a mouse. Profit is obvious you get the font of the minimum size just to suit your specific needs. You get fontomas :).
Linux origin can be traced back to the 70s of the 20th century. Its starting point began from the first release of Unix operating system in 1969 by Bell Laboratories, subsidiary of AT & T in the U.S. Unix has become the basic one for a large number of industrial-grade operating systems. The most basic of them showed on this timescale:
Linux is mostly indebted to two projects - GNU and Minix.
The story of the GNU project started in September 1983. The founder of GNU project, Richard M. Stallman worked at that time in the Artificial Intelligence Laboratory at Massachusetts Institute of Technology, Cambridge, Massachusetts. Stallman is considered as one of the most leading programmers of these days.