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  How can I teach a bright person, with no programming experience, how to program?

I usually prescribe the same sequence for anyone who wants to learn programming. It's very theoretical, but it lays a good foundation. It should take three or four months of fulltime study, but programming isn't something you learn overnight.If you can't get through this sequence, you're not going to be able to program, so you might as well give up now.Code, by Charles Petzold.The C Programming Language, K&RThe Structure and Interpretation of Computer Programs, Abelson and Sussman.My rule is...

   Steps,Programming,No experience,No knowledge     2011-11-07 08:27:48

  What Makes A Great Programmer?

I remember it like it was yesterday. It was the year 2000, Dr. Pargas was standing at the front of our data structures class talking about some data structure-y topic while an SSH session was projected on the wall in front of us. Someone asked a question, and he said something along the lines of "Well, if you want to be a real computer scientist you need to start using vi". I think he was smiling as he said it, and in hindsight his statement wasn't even slightly true, but being young and ...

   Programmer,Great programmer,Character     2012-02-15 06:14:04

  The Story of W&L: China’s Great Internet Divide

Here’s an introductory quote from The Story of W&L, a tale of China’s great internet divide: China does not have one so-called “national internet,” instead there’s a great divide. It encompasses the elite with ThinkPad laptops and also the grassroots with MTK Shanzhai mobile phones. Our elites are on par with America, while our grassroots are on par with Vietnam. This is the story of W&L, two representatives of China’s great internet divide. T...

   China,Internet divide,Elite,Grassroot,Laptop,Mobile phone     2011-12-05 12:23:56

  Everything You Thought You Knew About Learning Is Wrong

Taking notes during class? Topic-focused study? A consistent learning environment? All are exactly opposite the best strategies for learning. Really, I recently had the good fortune to interview Robert Bjork, director of the UCLA Learning and Forgetting Lab, distinguished professor of psychology, and massively renowned expert on packing things in your brain in a way that keeps them from leaking out. And it turns out that everything I thought I knew about learning is wrong. Here’s wh...

   Learning,Thought,Before,Wrong     2012-01-30 05:45:36

  About JavaScript source map

Last week jQuery 1.9 was released. This is the last release before jQuery 2.0. It adds many new functions, one of them is the source map. By accessing http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js , you can scroll to the last line and you will see below line : 　//@ sourceMappingURL=jquery.min.map This is source map, it is a separate file and it is put at the same directory as the source file. You can click here and see what it looks like. It's an very useful functio...

   Source map, JavaScript, jQuery     2013-02-01 07:06:44

  Efficiency of code execution

If you want to optimize your program codes, you need to find their Hotspot, i.e, the codes which are executed most frequently. If you can optimize this portion of codes a bit, you may gain much improvement of your code efficiency. Here I give you three examples about efficiency of code execution.1. PHP's Getter and Setter (From Reddit)This example a quite simple, you can skip it if you want.Consider the code below, we can find it's slower when we use Getter/Setter method to read a member variabl...

   Code, Efficiency,Analysis,Trick     2012-07-13 10:59:21

  printf("goodbye, Dennis");

Dennis Ritchie, a father of modern computing, died on October 8th, aged 70EVERY time you tap an iSomething, you are touching a little piece of Steve Jobs. His singular vision shaped the products Apple has conjured up, especially over the last 14 years, after Jobs returned to the helm of the company he had founded. Jobs's death in October resembled the passing of a major religious figure. But all of his technological miracles, along with a billion others sold by Apple's competitors, would be mere...

   Memory,Dennis Ritchie,C,Father of C     2011-10-22 12:42:22

  Popular Golang JSON libraries evaluation

JSON (Javascript Object Notation), a prevailing data exchange format, is widely used in various platforms and languages. Golang, of course, will never miss the support for JSON. And with its own standard library, such as those interfaces like the REST API from the API Service in Kubernetes, it can easily process JSON. Although Go’s library works great, we can still seek those open-source JSON libs in Github to maximize our efficiency. Then the features, performance, applicability of these ...

   FASTJSON,JSON LIB,JSON LIB COMPARISON,GO-JSON     2021-12-11 23:13:23

  The rather petite Internet of 1995

As you may know if you’re a regular reader of this blog, sometimes we like to take a trip down memory lane. It’s time for another one of those trips, to the murky past of the Internet and the dawning World Wide Web of 1995.Let’s start first with the people who actually use the Internet. How many were there back then?Worldwide Internet users in 1995Today there are almost 2 billion Internet users worldwide. In 2000, there were 361 million worldwide. But go back even farther in...

   Internet,Web,1995,Netscape,Microsoft,Net     2011-05-27 12:50:46

  Behavior of defer function in named return function

In Go, there is a special concept of named return value in function where a returned value can have name. For example, below is a named function in Go. func returnNamed() (i int) { i = 1 return } When the function returns, the return value i will have a value of 1.  Also, Go has a concept of defer which will execute a function just before the calling function exits. This is similar to what finally block does in other languages such as Java. For example, a defer function can be func deferF...

   GOLANG,DEFER,NAMED RETURN,DIFFERENCE     2018-11-20 09:04:07

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