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  5 Reasons Your Javascript Stinks

Javascript gets a bad rap on the Internet, but there are few languages that are so dynamic, so widespread, and so deeply rooted in our lives as Javascript is. The low barrier of entry leads some people to call it a script kiddie language, others scoff at the concept of a dynamic language while riding their statically typed high horse. You and Javascript just got off on the wrong foot, and now you've made it angry. Here's five reasons why your Javascript code sucks.1. You're not using a namespace...

   JavaScript,Good,Habit,Prototype,OOP     2011-04-13 12:25:37

  Open Letter to sites with annoying interfaces

Remember those childhood games where you are given two nearly identical images and your objective was to find some number of subtle differences? Well, I shouldn't have to play that game when I'm using your damn website. I show here two examples of a common practice that is plaguing the modern web. First, a clipping from a project page on github.com.     And now the second image:     See the difference? My question is this: why? That edit button is the only component of...

   Web design,User interface,User friendly,Layout     2011-12-27 09:32:10

  Three ways to define class in JavaScript

In object oriented programming, class is the template of object, it defines the properties and methods of a group of objects. Unfortunately, JavaScript doesn't support class, but we can have some workarounds to simulate class.1. Constructor functionThis is the classical approach, it is also the approach mentioned in many text books. It uses the constructor function to simulate class and it uses the keyword this to represent the object internally.function Cat() {　　this.name = "Kelly...

   JavaScript,Class,Method,Private,Inheritance     2012-07-09 11:59:51

  The Giant Mafia

There is an old Chinese saying "Things of a kind come together. People of a mind fall into the same group.". In the wave of Web 2.0, there are many emerging IT giants coming out the world. And many of them are founded by a group of people who previously worked together at the same company such as PayPal and Facebook. This is called giant mafia. Let's see what people from the big IT giant have done after leaving the original company. The PayPal mafia Peter Thiel, co-founder and CEO of PayPal bef...

   Facebook mafia,PayPal mafia,Twitter mafia     2015-04-04 10:32:00

  Removing all child nodes from an element

When manipulating the DOM, it's often useful to remove all child nodes from a specific element. This typically comes in handy when you're looking to replace the content of an element with a separate form element, such as an <input>, so the user can edit the actual value.Here's an example of something I recently created that illustrates my point:Get the Flash Player to see this player.These "dynamic form elements" are written to the page only when the...

   Js,DOM,Remove all children,Clear,JavaScript,Code     2011-10-19 10:04:23

  Using MySQL Connector/C++ with Visual Studio 2010

MySQL Connector/C++ is one of the latest connectors for MySQL, developed by Sun Microsystems. The MySQL connector for C++ provides an object-oriented application programming interface (API) and a database driver for connecting C++ applications to the MySQL Server.When we want to build a database application with C++ using Visual Studio 2010, we may use the MySQL Connector/C++, but sometimes we may encounter different errors, either compile or runtime error. After tried many times, I finally made...

   MySQL Connector,C++,Visual Studio 2010,VS2010     2012-06-01 13:52:20

  A serious security vulnerability found in MySQL/MariaDB

Recently a serious security vulnerability was found in MySQL/MariaDB. It relates to the access to the database. The issue is described below.When a user connects to MariaDB/MySQL, a token (SHA over a password and a random scramble string) is calculated and compared with the expected value. Because of incorrect casting, it might've happened that the token and the expected value were considered equal, even if the memcmp() returned a non-zero value. In this case MySQL/MariaDB would think that the p...

   MySQL,MariaDB,bug,fix,password,memcmp()     2012-06-11 10:28:09

  The significance of coding competition to actual work

Some friends asked this question: In secondary schools we participate in the NOI, in university we participate in ACM/ICPC, TopCoder.What's the significance of coding competition to actual work? I participated in the NOI from 1994 to 1996, ACM/ICPC from 1999 to 2000 and TopCoder in 2002 for six months. Later I paid little attention to coding competition, so I may not understand the changes in recent years and race mode . The capabilities we can get by participating the competition can be summari...

   ACM,Programming,Facebook,TopCoder     2013-02-28 20:38:23

  Only fast languages are interesting

If this isn’t a Zawinski quote, it should be. I have avoided the JVM my entire life. I am presently confronted with problems which fit in the JVM; JVM libraries, concurrency, giant data: all that good stuff. Rather than doing something insane like learning Java, I figured I’d learn me some Clojure. Why not? It’s got everything I need: JVM guts, lispy goodness; what is not to love? Well, as it turns out, one enormous, gaping lacuna is Clojure’s numerics performanc...

   Fast language,Clojure,Perl,JVM SLOW,Lush     2011-11-30 11:16:01

  Login with Amazon

Many websites now allow users to login to their websites with some third party accounts such as login with Facebook or login with Twitter. This is because Facebook and Twitter have many users and they also provide a good API for third parties to access the user data. This also eases the work of users since they no need to enter the same data again and again in each website. Now Amazon also releases its own login with Amazon plugin. Now third party websites can embed the login with Amazon button...

   Login with Amazon,OAuth     2013-05-29 13:07:09

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