In http://twitter.com/, when you scroll, the background image stays still, but only the main content at the center s开发者_如何学运维crolls. How can this functionality be achieved? Thanks.use a backgr
Is a good practice to run a web app directly from a repository checkout? i.e. if I do a git clone and then start up my backend servers wh开发者_StackOverflow中文版ich the front end proxies to.
I have been reading the VF2 algorithm for finding if two graphs are isomorphic but am somehow missing the big picture. Could be that I am missing the relevant background in this area but all I see is
How does an edge preserving smooth work? This is an image filter which blurs t开发者_如何学Gohe image without messing up the edges.
There is no day on SO that passes without a question about parsing (X)HTML or XML with regular expressions being asked.
I am solving UVa site problems, I have a problem that I must sort the integers as fast as possible. I have tried the bubble sort, but it is inefficient. I have tried the quick sort, which uses开发者_
I have a set of objects i\'m moving across the screen. The are going to be either 200 x 200 or 120 x 120 and will only move right or left in the x direction. I need to calculate the startingpositions
I had this problem today: This regex matches only English: [a-zA-Z0-9]. If I need support for any开发者_StackOverflow language in this world, what regex should I write?If you use character class sh
Make javaScript and CSS External So开发者_JAVA百科urce. Does that mean I should use JavaScript to load JavaScript and CSS files ? No, it means link them with link and script elements so they can b
I am trying to compensate for channel effects introduced into a waveform received over a mobile channel and the same waveform when received over a landline channel. Are there any libraries/code out th
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