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  How To Find a Great Start-Up Idea

Most people believe that the first step to starting a new company is to have a great idea. Back in business school, there were countless “idea brainstorming” sessions where groups of students would try to come up with the next billion dollar idea. None of them ever turned into anything.Great businesses are not built on ideas for marginal improvements or incremental features, they solve real problems and require a deep understanding of what those problems are. So the absolute worst th...

   Startup idea,Implement,Quickness     2012-03-18 00:26:22

  Multiple Constructor in PHP

See code:class MultipleConstructor {private $info = ”;function __construct() {$argv = func_get_args();switch( func_num_args() ){default:case 1:self::__construct1($argv[0]);break;case 2:self::__construct2( $argv[0], $argv[1] );break;}}function __construct1($value) {$this->info = $value;}function __construct2($value, $value2) {$this->info = $value . ” ” . $value2;}function get() {return $this->info;}}$a = new MultipleConstructor(‘Value 1′);echo $a->get();$...

   PHP,Constructor,Multiple constructor     2011-10-01 02:28:22

  JavaScript finite state machine

Finite state machine is a very useful design model, it can be used to simulate many events in the world. In short, finite state machine has three features: Number of states is finite At any moment, one object can only be in one state In some condition, it will transfer from one state to another state In JavaScript, finite state machine can be applied in many places. For example, one menu element on a webpage. When the mouse hovers on the menu, the menu will show up, while the mouse moves away...

   JavaScript,Finite state machine,State     2013-09-02 11:00:57

  Web Consistency Testing

Introduction Web Consistency Testing is a new form of Web testing that aims to answer the simple question: does this page look right? It's an automated approach to making sure a page looks the way we expect, whether that be cross-browser, over time (regression), in multiple locales, or whatever else we can think of. Kevin Menard, founder of Mogotest, presented an in-depth talk about what Web Consistency Testi...

   Website,Consistency,Testing,Consistency testing,Advice     2011-12-01 02:52:30

  Break down defer statements in GoLang

Basic Concepts What are the characteristics of the deferred statement defer in Go language? When is it usually used? The deferred statement(defer statement) in Go language has the following characteristics: Deferred Execution: Deferred statements are executed before the function containing them exits, regardless of whether the function returns normally or encounters an exception. Last In, First Out (LIFO): If there are multiple deferred statements, they are executed in the order of last in, f...

   DEFER,GOLANG     2024-02-10 21:56:10

  Test-Driven Development? Give me a break...

Update: At the bottom of this post, I've linked to two large and quite different discussions of this post, both of which are worth reading... Update 2: If the contents of this post make you angry, okay. It was written somewhat brashly. But, if the title alone makes you angry, and you decide this is an article about "Why Testing Code Sucks" without having read it, you've missed the point. Or I explained it badly :-)Some things programmers say can be massive red flags. When I h...

   Test driven,Application design,tool     2011-10-17 10:19:16

  JavaScript efficiency catch up

JavaScript is a very flexible language, we can write JavaScript code freely with various styles, different kinds of codes will have different execution efficiency. Here we summarize some tips we get from our development. Efficiency of JavaScript itself JavaScript has execution context chain, closures, prototype inheritance, eval etc. It brings us some magic features, but it also introduces the performance issue, if we don't use them properly, it will affect the codes execution efficiency. 1. Glo...

   JavaScript,efficiency,event delegation,eval     2013-04-02 04:08:46

  try { return } finally {}

Do you know what value will be printed when following program is ran? class Test { public int aaa() { int x = 1; try { return ++x; } catch (Exception e) { } finally { ++x; } return x; } public static void main(String[] args) { Test t = new Test(); int y = t.aaa(); System.out.println(y); } } And before answering the above question, do you have answers to following questions? If ther...

   JAVA,JAVA INTERVIEW QUESTION     2016-09-26 08:06:28

  Want Me to Read Your Blog? Do This

It's deceptively easy to maintain traffic once you've scored that initial boost of visitor hits. In fact, one of the greatest determinations of this relies on a single make or break entry.Every blogger knows, if they look at their web analytics at all, that one of the most consistently viewed pages is the biographical entry. If it's linked on the home page or throughout the blog, the audience will invariably stay long enough to read it, at least 25%...

   Web blog,Traffic,About page,Biography     2011-12-05 13:16:37

  Data as code

What is a good command line parser API? A good command line parser should consider below 5 aspects: Support convenient help information generation Support sub commands, for example, git has push,pull,commit sub commands. Support single character option, word option, flag option and option with parameter. Support default option, for example, if no -port is set, set it as 5037 Support usage model, for example, tar's -c and -x is mutually exclusive, they belong to different usage models. Here are...

   Command line,API     2013-08-08 22:40:36

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