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  20 bit operations programmers should know

While talking about bit operation, programmers usually think about its efficiency. In embedded programming and system core optimization, appropriate use of bit operations is always a fascinating. When finding a job, it will help you a lot if you use bit operations when writing codes. Mastering simple bit arithmetic skills is necessary. 1. Get maximum int value int getMaxInt(){           return (1 << 31) - 1;//...

   Bit operation, Tips     2012-12-19 12:53:33

  What have been Facebook’s greatest technical accomplishments?

To maintain a large website which gets billions of requests er day and keeps very fast response speed is not an easy task. Many big companies are trying best to improve user experience by adopting different techniques. There is a question on Quora which asks "What have been Facebook’s greatest technical accomplishments?". There is a person who worked in Facebook before provided an answer which helps us understanding how Facebook handles huge amount of traffic each day. Here is the answer f...

   Facebook, Design, Efficiency     2013-01-15 07:32:07

  The Number One Trait of a Great Developer

Maybe the best programmers aren’t those who spectacularly solve crazy problems, but those who don’t create them, which is much more silent. – Lena HerrmannWhen I look around at other companies hiring Ruby on Rails developers, I see them focusing on three major traits: Super-smart; Large community following; Deep Ruby knowledge. They’re all wrong. While these are great aspects in moderation, they all miss the number one quality of a fantastic developer: Judge...

   Developer,Trait,Judgement,No. 1     2011-11-05 06:49:19

  Wow: Intel unveils 1 teraflop chip with 50-plus cores

I thought the prospect of quad-core tablet computers was exciting.Then I saw Intel's latest -- a 1 teraflop chip, with more than 50 cores, that Intel unveiled today, running it on a test machine at the SC11 supercomputing conference in Seattle.That means my kids may take a teraflop laptop to college -- if their grades don't suffer too much having access to 50-core video game consoles.It wasn't that long ago that Intel was boasting about the first supercomputer with sustained 1 teraflop performan...

   Intel,Chip,Multi-core,teraflop     2011-11-16 08:15:39

  How Google Tests Software - Part Three

Lots of questions in the comments to the last two posts. I am not ignoring them. Hopefully many of them will be answered here and in following posts. I am just getting started on this topic.At Google, quality is not equal to test. Yes I am sure that is true elsewhere too. “Quality cannot be tested in” is so cliché it has to be true. From automobiles to software if it isn’t built right in the first place then it is never going to be right. Ask any car company that has ever h...

   Google,Software,Testing,Quality,Fidelity     2011-03-22 14:31:00

  If You’re Busy, You’re Doing Something Wrong: The Surprisingly Relaxed Lives of Elite Achievers

The Berlin StudyIn the early 1990s, a trio of psychologists descended on the Universität der Künste, a historic arts academy in the heart of West Berlin. They came to study the violinists.As described in their subsequent publication in Psychological Review, the researchers asked the academy’s music professors to help them identify a set of stand out violin players — the students who the professors believed would go onto careers as professional performers.Weâ...

   Relax,Elite,Achievement,Work life balance     2011-11-11 02:37:03

  Interaction between JavaScript and Frameset

ou want to change more than one frame at a time? OK, well here is how to do make the trick work for you! The first thing you will need is a frameset to get you started. Again, I will use a frameset with two frames. Here is the code for the frameset page: <HTML> <HEAD> <TITLE>Frames Example 5</TITLE> </HEAD> <FRAMESET cols=\"20%,80%\"> <FRAME SRC=\"page1.htm\" name=\"left_frame\"> <FRAME SRC=\"page2.htm\" name=\"right_frame\"> </FRAMESET> <...

   interaction,javascript,html,frameset,fra     2011-03-22 12:50:47

  Guide to use Compass

Sass is one kind of CSS Preprocessor, it can make CSS development simple and maintainable. But to show its real power we may need to have Compass. This article is to introduce Compass. Once you learn Compass, your CSS development efficiency will be largely improved. Here we assume you have mastered the major uses of CSS, if you know Sass, then it's better. It's still ok if you don't know Sass. 1. What is Compass? In simple, Compass it the toolkit of Sass. Sass itself is only a compiler, Compass...

   Compass,CSS,Sass,Tutorial     2012-12-03 13:35:46

  Programming: the benefits of taking a break

This post lists several benefits of taking a break during programming.You work smarter, not harder. Once, I worked really hard on a feature. For two weeks, 12 hours a day, I put in a lot of effort. After those two weeks, I took a break and came up with several ideas that made much of the work unnecessary.You think more clearly. Being tired has a similar effect as being drunk. At the end of a day, I often kid myself that I’ll just get this one thing finished quickly to have a fre...

   Programming,Break,Rest,Refresh,New idea     2011-11-08 08:50:45

  Great code is written twice (or more)

The last couple of years more and more people have been moving towards Agile development. These techniques aren’t new, most we’re devised in the 80s or 90s. But finally these days programmers and (more importantly) business consultants, architects and clients have learned to love and embrace Agile development.Evolving requirementsIt has now become common knowledge that you can’t write down all the requirements before you start the project. These requirements h...

   Twice,Good code,Recoding,Agile,Evolvement     2011-11-01 00:36:35

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