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  A simple example of git bisect command

git bisect is a very powerful command for finding out which commit is a bad commit when bug occurs.  The rationale behind this command is that it pin locates the bad commit by divide and conquer. It divides the commit history into two equal parts, then determines whether the bad commit is at the first half or at the other half. This process will continue until the bad commit is located. Here is a really good example created by bradleyboy, this is a simple git repository which demonstr...

   GITHUB,GIT,GIT BISECT     2019-07-12 10:31:51

  Does CEO of a tech company need to know programming?

For tech startups, there are usually only a few people at their early stage. To complete all the coding work in a short period time, it often requires that every one of the team including the CEO knows something about programming so that they can help complete the tense work as soon as possible. But does the CEO of other tech companies also need to know programming? As the CEO of a company, it's not necessary that they have to know about programming. The main job of CEO is to coordinate all the ...

   CEO,Programming,Benefit     2013-07-01 05:39:26

  Why Programmers don’t have a High Social Status?

Up to date there is No single street name for a top programmer or computer scientist in any of the Top 20 most developed countries in the world during the last 60 years. There is no statue built in the center of a major city for a renown programmer or computer scientists. No “Presidential Medal” or “Congressional Gold Medal” has been awarded to a computer scientists or programmer. There is no nationally televised social reward ceremony for computer programmers and scie...

   Propgrammer,Social status,Remember,Achievement     2012-01-04 02:43:05

  Why Javascript is a Joy

I’m probably a bit biased – being a front-end web developer for a few years will do that – but I really enjoy writing Javascript. I’ve recently retreated from pure coding the last few months, but I got an opportunity this past week to jump back into some tasks, and it has reminded me how fun it is to dive into our[1] front-end codebase. Yes, Javascript can be surprisingly elegant yet completely infuriating, and all on the same line of code; for a long time, ...

   JavaScript,Speed,Simplicity,Malleable     2012-03-26 15:00:31

  HP To Apple: You Win.

As I write this, I’m sitting in a cafe. Around me, there are five people on laptops — four of them are MacBooks. Four other people are using tablets — all four are iPads. Welcome to the Post-PC world. That phrase was one of the first things that jumped to my mind today when I heard the news that HP was not only killing off their TouchPad and Pre webOS-based products, but also trying to spin-off their PC business. The largest PC busine...

   HP,Apple,Palm,Competition,webOs     2011-08-19 07:38:41

  Those famous Emacs users

I don't think using Emacs can improve one's programming skills, I don't think some famous people used Emacs before can provide something, either. But these famous people encouraged me to learn Emacs when I wanted to give it up. Here I created a list of famous Emacs users. Most of people in this list are not famous because they developed or used Emacs, but they are famous and also use Emacs. Joe Armstrong -- Erlang's author In The Setup, Joe mentioned that "I write books using XML markup in emacs...

   Emacs,History     2013-07-28 21:36:09

  Pagination or continuous scrolling? It's a question

No matter in web page or mobile applications, information often can not be displayed on one page all alone, there needs some interactive modes which can expand page information: Pagination and Continuous Scrolling are very common interactive modes. Every day we may see them, they are so common that we do not even feel their presence, when browsing to the bottom of the page, we will see it. But it's difficult to choose which mode to use in design. Here we have a discussion on these two modes. Pag...

   Pagination,Continuous scrolling,Design     2012-09-12 19:55:51

  Understand diff in Unix

diff is an important tool program in Unix. It is used to compare differences of two files, it is the foundation for code version control. If you type : $ diff <file_before_change> <file_after_change> diff will tell you what's the difference between these two files. The result may not be so easy to understand, so now I will show you how to understand diff. 1. 3 formats of diff diff has 3 formats due to historic reasons. normal diff context diff unified diff 2. Demo files For easy d...

   diff,Unix,version control,git     2012-09-03 10:49:36

  Use downcase! with caution in Ruby

Ruby provides ! to change state of some object in place. Hence if you see some functions have ! appended, it means the state of the caller of the function is expected to be changed. This is a very interesting Ruby feature. But sometimes one should be cautious when using this kind of functions because you would get unexpected behavior if using improperly. Let's take an example of String#downcase!. According to the documentation. Downcases the contents of str, returning nil if...

   RUBY,EXCLAMATION MARK,DOWNCASE     2017-02-10 06:34:44

  Some thoughts about competitive programming

Many programmers may have experience in participating different kinds of coding competition while they are in college. Many of them are hired by top IT companies for their excellent performance during these kinds of coding competitions. There are some famous competitions organized by IT companies such as Google Code Jam, Facebook hackathons etc. Coding competitions are places where programmers can show their talents in programming and the skills they have. Usually programmers will solve some to...

   Coding,competition     2014-03-02 07:26:21

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