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  A mini guide to HTTP referer

In HTTP header, there is a field named Referer which is to provide the referrer of the current accessed page. In this post, we will introduce the usage of HTTP referer field. On the web, when a user visits a webpage, s/he must be from some place. This place is usually referred a s referer. This information is very important to some website operators and server owners as they want to know where they get the traffic from and this helps them provide better service for potential targeted users. In t...

   HTML,HTTP REFERER,REFERRERPOLICY     2019-06-29 02:23:25

  Lisp: It's Not About Macros, It's About Read

Note: the examples here only work with outlet lisp. Refer to your version of lisp/scheme’s documentation for how read works (and possibly other forms) I know it’s an old post by now, but something about the article Why I love Common Lisp and hate Java, part II rubbed me the wrong way. The examples just aren’t that good. The usage of macros is plain baffling, when a function would have been fine. The author admits this, but still does it. There’s a follow-up post wh...

   Lisp,Macro,Read,Java     2012-02-19 06:12:19

  A few things Steve Jobs hates doing but his successor did

After Apple released a few "amazing/great" products on 9th September, there are tons of discussions about these new products. The impression most people have is that Apple is losing its capability of innovation and doing things that are NOT different anymore. People will bring back the good memories of Apple when Steve Jobs was still alive everytime when they feel disappointed about the new products Apple released. In this event, Apple released some products which Steve Jobs was hating including...

   Apple,Steve Jobs,Tim Cook,Stylus,Hate     2015-09-11 08:47:13

  Rebirth of Microsoft?

Only from the point of view of design and products, Microsoft may seem like an ongoing decline of the old giant: IE browser market share continues to drop, PC market continues to shrink where Windows depends on and tablet PC market gets rapid expansion, Windows Mobile, Windows phone perform not so well, even CEO Steve Ballmer is often ridiculed and accused. All these seem to indicate that Microsoft's golden era is over. But on the other hand, while its net profit for the past two years has ...

   Microsoft,Rebirth,change     2012-10-05 20:09:15

  Will We Need Teachers Or Algorithms?

Editor’s note: This is Part III of a guest post written by legendary Silicon Valley investor Vinod Khosla, the founder of Khosla Ventures. In Part I, he laid the groundwork by describing how artificial intelligence is a combination of human and computer capabilities In Part II, he discussed how software and mobile technologies can augment and even replace doctors. Now, in Part III, he talks about how technology will sweep through education. In my last post, I ...

   Teacher,Algorithm,Development     2012-01-16 10:17:45

  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

  How the Go language improves expressiveness without sacrificing runtime performance

This week there was a discussion on the golang-nuts mailing list about an idiomatic way to update a slice of structs. For example, consider this struct representing a set of counters. type E struct { A, B, C, D int } var e = make([]E, 1000) Updating these counters may take the form for i := range e { e[i].A += 1 e[i].B += 2 e[i].C += 3 e[i].D += 4 } Which is good idiomatic Go code. It's pretty fast too BenchmarkManual 500000 ...

   Go,Expressiveness,Performace,Sacrifice     2012-02-12 04:53:55

  Some famous product release venues

About product release conference, you must remember Apple Worldwide Developers Conference(WWDC), right? But do you remember where the conference is held? Actually, when companies release new products, they will hold some kind of conferences or sessions to introduce their products. But does anyone know what are the places where these conferences are held? Here geekpark summarized some product release places for us. 1. Moscone West Convention Center Moscone West Convention Center is the biggest co...

   Conference, Place,Product release     2012-10-11 20:32:22

  Helping people find good Perl tutorials

If a co-worker comes to you and asks you: "I would like to learn Perl, where can I find a good Perl Tutorial?", I am sure your would have a few recommendations. If the same person did not know you she would have to type some search term in Google and hope she found the right learning material.Recently Christian Walde (Mithaldu) asked "How do newbies find Perl learning materials online?". Dave Cross responded by checking the top results when searching for "perl tutorial".It shows that many p...

   Perl,Perl tutorial,Resource,Website     2011-11-03 13:34:33

  What to Know About Windows 11

Windows 11 launched in October, with Microsoft bringing some changes to the operating system. It was the first name change in six years, and the rollout began on October 5. The rollout is being phased on eligible devices.  You can download it if you don’t want to wait for it to be your device’s turn.  Some businesses are opting to defer upgrades to Windows 11, as are some individuals. Others are excited to take advantage. The following are some things to know about impleme...

   MICROSOFT,WINDOWS 11     2021-12-06 10:41:04

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