SEARCH KEYWORD -- Plugout problem
The Obvious, the Easy, and the Possible
Much of the tension in product development and interface design comes from trying to balance the obvious, the easy, and the possible. Figuring out which things go in which bucket is critical to fully understanding how to make something useful. Shouldn’t everything be obvious? Unless you’re making a product that just does one thing – like a paperclip, for example – everything won’t be obvious. You have to make tough calls about what needs to be obvious, ...
Software,Obvious,Easy,Possible,Requirements 2011-11-30 11:48:12
Fix WampServer offline issue
WampServer is a web server on Windows which provides easy to use features for PHP developers. You can easily setup a web server by installing WampSserver without much hard to understand configurations. After installing it and with a simple configuration, you just need to double click it and start all services and your server is gonna up. If the server starts up normally, you will see a green icon which indicates the working status at the taskbar. But if you don't see the green icon shown u...
APACHE,PHP,WAMPSERVER 2015-09-13 01:59:38
Don't write on the whiteboard
I recently interviewed at a major technology company. I won't mention the name because, honestly, I can't remember whether I signed an NDA, much less how strong it was.I did well. Mostly because of luck. I normally step over myself when I interview. I guess I've improved over the years. Here are a few tips to ace your own interview.1. Don't write on the whiteboardWhen I interviewed at Palantir around 5 years ago, I had a lot of trouble with this. Yes, I knew next to nothing about compu...
Interview,Preparation,Whiteboard,Note,Python 2012-01-11 11:31:32
Programming Language Readability
Lets compare some Python to Haskell for solving the same problem. The problem we’ll pick is Trie data-structure for auto-completions. We are interested not so much in the nitty gritty of the algorithm, but in the language style itself. Auto-complete has been in the programming news a lot recently; both a Python and a Haskell solver have turned up. (I suspect this post got flagged on Hacker News :( It never got on the front-page despite the rapid upvoting on a n...
Programming,Readability,Python,Haskell 2012-02-27 04:52:02
Convert JKS to BKS using keytool
There are lots of questions(question 1, question 2) on Stackoverflow about how to convert JKS keystore to BKS keystore(a keystore format provided by BouncyCastle) using Java keytool. The reason why this conversion gets lots of questions is that BKS is not a keystore format supported by Java SE, it's a third party keystore format. To convert JSK to BKS, the BKS provider has to be downloaded first. And a few more options needs to be added when running the keytool command. The typical co...
Install both 32 bit and 64 bit WAMP server
WAMP server is a platform tool for serving PHP applications on Windows. It includes a combination of Apache, MySQL and PHP service which can help developers test or run PHP applications with minimal setup. Sometimes one would first have a 32 bit version of WAMP installed and a few applications have been configured. But later s/he would mistakenly installed a 64 bit version of WAMP and somehow the 32 bit version configuration is overwritten. This causes a problem where the old applications config...
PHP,WAMP,64 BIT,32 BIT,MULTIPLE VERSION 2017-03-18 01:14:21
Don't Give Your Users Shit Work
The problem with shit work is that no one likes doing it, but an awful lot of people say they do.Shit workTake a look at Twitter Lists. The idea behind Twitter Lists was that users would carefully cultivate lists on Twitter of different accounts they’re following (or not following). These could be divided into lists like Family, Friends, Coworkers, People I Find Mildly Attractive, People To Murder, People I Find Mildly Attractive And Want To Murder, and so on.The problem is that, anecdota...
Design,Facebook,Twitter,User oriented 2011-11-03 13:28:59
malloc/free and new/delete in C++
malloc and free are C++/C language standard library functions, while new/delete are operator of C++. They can be used to allocate dynamic memory and free memory in C++ programs malloc/free can not meet the requirements of dynamic objects creation. Object needs to call the constructor to initialize the object when creating, the object needs to call the destructor before it is destroyed Since malloc() and free() are library functions rather than operators, the compiler has no control permiss...
Resolve high CPU usage issue caused by file_get_contents in PHP
Sometimes a Linux server which runs Nginx + PHP-CGI(php-fpm) web service may experience sudden system load increase and the CPU usage is around 100% for many php-cgi processes when checking with top command. If this happens, file_get_contents may be the cause if it's used in the PHP script. In lots of web applications, normally there are lots of API requests based on HTTP. Many PHP developers like to use file_get_contents("http://example.com/") to get the API response because it's simple to...
PHP,FILE_GET_CONTENTS,PHP-CGI 2018-11-09 21:35:00
The Greatest Developer Fallacy Or The Wisest Words You’ll Ever Hear?
"I will learn it when I need it"! I've heard that phrase a lot over the years; it seems like a highly pragmatic attitude to foster when you're in an industry as fast-paced as software development. On some level it actually IS quite pragmatic, but on another level I am annoyed by the phrase. It has become a mantra for our whole industry which hasn't changed said industry for the better. The problem is this, in the guise of sounding like a wise and practical developer, people use it as an exc...
Tips, Programming, Expert 2011-04-06 11:07:43
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