Today's Question:  What does your personal desk look like?        GIVE A SHOUT

SEARCH KEYWORD -- Function call

  Mutli-inheritance bug between python 2.7 and 3.7

When we have run a py3.7 code under py2.x or a py2.x code under 3.x ,if a class do mutli-inheritance from 2 parent and the 2 parents also got inheritance from same parent, the different way to handle inheritance chain between python 2 and 3 will cause some running time bug: Assume we got this sample program inheritTest.py : # Purpose: Test mutli-inheritance different between python2 and 3 # Author: Yuancheng Liu # Created: 2019/05/16 class A: def getVal(self): print("cal...

   PYTHON,PYTHON 3,INHERITANCE     2019-05-16 08:33:52

  socket_create() from command prompt with WAMP

Problem:I’m working on a wamp system, and have started playing around with sockets. I enabled sockets via the wamp interface:wamp : PHP settings : PHP extensions : php_socketsand could run my php file via my browser.When trying to run the same file via the command prompt (start : run : cmd), I got the following error:Fatal error: Call to undefined function socket_create() in … on line …Solution:The command prompt uses a different php.ini file to the apache server.The Apac...

   PHP,WAMP,Windows,Command line,Socket     2011-05-30 10:59:14

  Gracefully exiting from console programs in Ruby

Imagine you write a CLI program or a Rake task which loops through some data performing some work on it. You run it and then you remembered something. You’d love to kill the process with ctrl-c, but that will raise an exception somewhere in the loop. What you want is for the iteration to complete and then you want the program to quit. You could handle the Interrupt exception or add some conditions. But how about a cleaner and reusable way? No problem - you can trap signals, which...

   Ruby,Exit,Command window,Console,Graceful     2012-03-14 13:42:16

  Permutation algorithm with JavaScript

In secondary school, we have learned permutation. Basically, for n numbers, the number of permutations for these n numbers can be calculated to n! which is called 'n factorial'. But to display all the permutations on the screen, we need to use a recursive function. The problem is how to write this function.  Next I write a program to display the permutations for n numbers with JavaScript. First, we need to understand that from these n numbers, we can first take any one number from it, and t...

   JavaScript,Permutation,Algorithm,Impleme     2011-09-21 12:02:35

  What to Look for in PHP 5.4.0

PHP 5.4.0 will arrive soon. The PHP team is working to bring to some very nice presents to PHP developers. In the previous release of 5.3.0 they had added a few language changes. This version is no different. Some of the other changes include the ability to use DTrace for watching PHP apps in BSD variants (there is a loadable kernel module for Linux folks). This release features many speed and security improvements along with some phasing out of older language features (Y2K ...

   PHP,5.4,New feature,Built-in server,Trait     2011-12-21 10:20:12

  Want to Expand Your Customer Base Globally? A Global Phone Number Is Your First Step

If you want your establishment to connect to the world, you’re in luck. Thanks to technology development, it’s much easier to do this now more than ever. But with this global expansion, you should have a few assets to help you with your success. To maintain your business reachability no matter where your customer is, you can start with a global phone number provided by companies like Telnum. If you’re not sure if it’s the right move, we’ll help you decide whether i...

   VOIP,BUSINESS     2024-01-04 05:28:19

  Will Microsoft use Windows 8 to replace Metro?

Since there is some dispute with a German company Metro AG on the word "Metro", it is said that Microsoft will abandon "Metro" in Windows 8. Then what will be the replacement of "Metro"? According to Zdnet, the answer may be Windows 8. Microsoft reminds Windows developers not to use "Metro" when they mention interface of Windows Phone or Windows 8 in their apps and recommends that the developers use New User Interface when they describe Windows 8 style interface design. Microsoft officially anno...

   Windows 8,Metro,name     2012-08-10 13:32:00

  Google upgrades its built in calculator

Google search engine is more and more intelligent.It has been a long time since Google integrated a built in calculator in its search engine. Today, Google upgraded its built in calculator function in its search engine, a new calculator interface with 34 buttons is added.Before upgrading, if you type 6+7 in the search field, Google will only show the answer 13. But now, if you enter this formula again, in addition to the answer, it will display one calculator interface with 34 buttons. See follo...

   Google,built in,Calculator,Upgrade     2012-07-25 11:07:33

  The magic of go:linkname

When writing Go program, there is frequent need on using time.Sleep() function to pause the logic for some time. And if jumping to the definition of this function, can see below definition: // Sleep pauses the current goroutine for at least the duration d. // A negative or zero duration causes Sleep to return immediately. func Sleep(d Duration) I's strange that there is no function body defined here. What happened? The actual definition of the function body is residing at runtime/time.go&nb...

   TRICKS,GO:LINKNAME,GOLANG     2022-04-10 08:39:00

  Prototypes and Inheritance in JavaScript

Forget everything you know about object-oriented programming. Instead, I want you to think about race cars. Yes – race cars. Recently I was watching the 24 Hours of Le Mans –a popular racing event in France. The fastest cars in the race are the Le Mans Prototypes. Although these cars are built by car manufacturers like Audi and Peugeot, they are not cars you’ll see on the streets and highways of your home town. They are built exclusively for high-speed endurance ra...

   JavaScript,Prototype,Inheritance     2012-02-27 04:55:22

RECENT