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  Why I love Common Lisp and hate Java

“Common what?” is a common reply I get when I mention Common Lisp. Perhaps rightly so, since Common Lisp is not all that common these days. Developed in the sixties, it is one of the oldest programming languages out there. In its heydays it was used mostly for Artificial Intelligence research at MIT, Stanford, Carnegie Mellon and the like, and therefore has a lingering association with AI. People not in AI shy away from Lisp. Common Lisp is a powerful and versatile program...

   Lisp,Java,Comparison,Common Lisp     2012-01-30 05:48:16

  Hash Tables in Javascript

IntroductionHash tables are a permutation of associative arrays (i.e. name => value pairs). If you use PHP, then you are very familiar with this type of data structure already since all PHP arrays are associative.The Javascript language implements very loose and somewhat limited support for associative arrays. Any JavaScript array can use other objects as keys, making it a hash, but there exists no formal constructor for initializing them and it is more or less unweildy to work with. A short ...

   JavaScript,Hashtable,Implementation,Array     2011-11-26 02:43:40

  A Clash of Titans Between Elon Musk and Larry Page over AGI's Future

Artificial General Intelligence(AGI) has long been a topic of fascination and concern for technology leaders, with some seeing it as humanity's ultimate tool, while others view it as an existential threat. This clash of perspectives was on full display during the acquisition of DeepMind by Google in 2014, as two tech titans, Elon Musk and Larry Page, found themselves on opposite sides of the debate. While Page saw AGI as a necessary and desirable step in humanity's evolution, Musk was more wary ...

   AI,LARRY PAGE,ELON MUSK,AGI     2023-04-30 11:13:53

  A Better Way to Learn How to Program

Learning how to program can be a nightmare. An aspiring coder has to jump through many unpleasant hoops and mysterious error messages just to get "Hello, World!" printed on the screen. Then, she's left wondering, "OK, now what? How do I actually build something?"As game developers seeing someone struggle through this, we should be screaming, “NOOOOO!” The whole thing reeks of bad game design: a lot of work with no reward, unclear failure cases, advanced features pushed on new players...

   Programming pattern,Game design,Derivati     2011-09-19 13:51:17

  Static Code Analysis

The most important thing I have done as a programmer in recent years is to aggressively pursue static code analysis.  Even more valuable than the hundreds of serious bugs I have prevented with it is the change in mindset about the way I view software reliability and code quality.It is important to say right up front that quality isn’t everything, and acknowledging it isn’t some sort of moral failing.  Value is what you are trying to produce, and quality is only one a...

   Static code,Analysis,Quality,Microsoft 360,Value     2011-12-24 06:50:18

  Understand GoLang WaitGroup internals and how it works

Background Before getting into the main content, let me give a brief introduction to WaitGroup and its related background knowledge. Here, the focus is on the basic usage of WaitGroup and the fundamental knowledge of system semaphores. For those who are familiar with these, you can skip this section directly. WaitGroup WaitGroup is one of the most common concurrency control techniques in Golang, and its function can be roughly compared to the join() in concurrency control of other languages' mul...

   GOLANG,WAITGROUP,SOURCE CODE     2023-04-26 08:02:01

  How Google Utilizes Big Data for SERP

Google is an expert when it comes to big data. This is evident in their development of various techniques and open source tools which are used by the big data industry professionals. These tools and technique allow Google to sift through millions of different websites and enormous amounts of data in order to provide users with correct answers in a matter of milliseconds. But how does Google accomplish that with such precision? To answer that, we need to focus on the complex activities that go o...

   GOOGLE,BIG DATA     2017-05-31 16:13:03

  Getting started with C++ TR1 regular expressions

Overview This article is written for the benefit of someone familiar with regular expressions but not with the use of regular expressions in C++ via the TR1 (C++ Standards Committee Technical Report 1) extensions. Comparisons will be made with Perl for those familiar with Perl, though no knowledge of Perl is required. The focus is not on the syntax of regular expressions per se but rather how to use regular expressions to search for patterns and make replacements. Support for TR1 ext...

   Regular expression,Replace,TR1,Extension     2011-08-14 07:25:20

  Is Ubuntu becoming a big name in enterprise Linux servers?

Summary: Mark Shuttleworth says yes, Ubuntu is now competitive with Red Hat Enterprise Linux in the enterprise space. Since last summer, Ubuntu has been more popular than Red Hat as a Web server. When you think of Ubuntu Linux, what do you think of? I would guess you think about the Linux desktop. While Ubuntu is certainly a big player—maybe the biggest—when it comes to the Linux desktop, Mark Shuttleworth, founder of Canonical, the c...

   Linux,Ubuntu,Daat center,Server     2012-04-15 01:22:53

  JavaScript interview questions

This post will cover the JavaScript questions I have encountered and have seen during my programming career. They will mainly focus on vanilla JavaScript though there are lots of excellent frameworks out there and many people are using them in their daily work. this keyword this keyword is an very important but easy to confuse concept in JavaScript since it is always referring to the calling object of the function. 1. What will be the output of below code snippet? function User(name) { this....

   JAVASCRIPT,ALGORITHM,THIS,CLOSURE     2019-03-09 07:05:46

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