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So you want to write JavaScript for a living?
What do you need to know if you are interviewing for a job that involves Javascript development? What kind of expectations do employers have of candidates now that the state of client side development has been changed with the rise of asynchronous JavaScript and the often slick, supporting interfaces? These were questions I was asking myself after a friend pointed me to an interesting job posting over at Meebo that included some JavaScript puzzlers on logical operators, DOM odditi...
JavaScript,Career,Skills,Knowledge 2011-10-22 12:53:11
Address of a Java Object
In conventional java programming, you will never need address or location of a java object from memory. When you discuss about this in forums, the first question raised is why do you need to know the address of a java object? Its a valid question. But always, we reserve the right to experiment. Nothing is wrong in exploring uncharted areas.I thought of experimenting using a little known class from sun package. Unsafe is a class that belongs to sun.misc package. For some of you the package might ...
Java,Object,Address,Memory,Start address 2011-09-29 11:17:46
Fastjson just fixed a bug which might cause out of memory issue
Fastjson just fixed a bug which might cause service down a few days ago. This bug is caused by some mishandling of special character \x which is an escaped character to indicate hexdecimal number. The impact of this bug would be big if the attacker constructs a malicious data which would cause the service down. The code which causes the issue is in com.alibaba.fastjson.parser.JSONLexerBase#scanString, when a JSON string is passed in, fastjson would parse the string character by c...
Installing LAMP On Ubuntu
In this guide I will show you how to install a LAMP system. LAMP stands for Linux, Apache, MySQL, PHP. The guide is intended to help those who have very little knowlegde of using Linux. Install ApacheTo start off we will install Apache.1. Open up the Terminal (Applications > Accessories > Terminal).2. Copy/Paste the following line of code into Terminal and then press enter:sudo apt-get install apache23. The Terminal will then ask you for you're password, type it an...
Java’s toLowerCase() has got a surprise for you!
Have you ever encountered a surprise while using toLowerCase()? This is a widely used method when it comes to strings and case conversion. There is a nice little thing you should be aware of. toLowerCase() respects internationalization (i18n). It performs the case conversion with respect to your Locale. When you call toLowerCase(), internally toLowerCase(Locale.getDefault()) is getting called. It is locale sensitive and you should not write a logic around it interpreting loca...
Java,toLowerCaser(),Locale specific,Stra 2011-09-29 11:21:07
Good to Great Python reads
A colÂlecÂtion of python “must readsâ€:The Python yield keyÂword explainedPython’s super() conÂsidÂered super!UnderÂstandÂing Python DecoratorsWhat is a metaÂclass in Python?MetaÂclasses DemystifiedTry/Catch for valÂiÂdaÂtion or speed?Python (and Python C API): __new__ verÂsus __init__Python “self†keywordPython and the PrinÂciÂple of Least AstonishmentA CuriÂous Course on CorouÂtines and Concurr...
Python,Reference,eBook,Reading Material 2011-11-15 11:46:12
Ruby WinRM undefined method `split' for nil:NilClass
WinRM service is a service provided by Windows to enable remote access a Windows system. It is similar to what SSH is for *nix. And it is frequently used in applications which want to automate process or accessing remote Windows system and perform actions on them. Ruby also provided the WinRM gem which is an implementation of the WinRM service. When using WinRM gem, one may often want to use :negotiate as the transport protocol for authentication. This transport will negotiate using d...
It’s Not China; It’s Efficiency That Is Killing Our Jobs
The majority of wealth is now concentrated at the top of the social ladder. This is particularly true in the US, and the gap is widening every year. This, I believe, is because of efficiency, not China. Today the best ideas can efficiently and quickly propagate worldwide, and everyone can efficiently find them and buy them. This makes the owners of these ideas filthy rich, and those ideas that are not the best, can hardly survive. It’s not just transfer of information that is fast; wealth...
China,Efficiency,Job,Opportunity,Wealth 2011-10-23 11:43:18
Microsoft is filing a new patent about transparent display
Microsoft is filing a new patent about transparent display screen, it may be used on augmented reality technologies of tablets, phones and laptops. Similar to the scenes in the movie Minority Report. Minority Report was showed in 2002, it described a world of 2054, at that time 3D technology is mature. But after 10 years of this movie, Microsoft not only invented the basis of this technology, but also make it more portable.Patent Bolt recently revealed a patent application of Microsoft about tra...
Microsoft,Transparent display,3D,Patent 2012-05-10 05:31:16
The business of software
Inspired by a talk I gave yesterday at the BOS conference. This is long, feel free to skip!My first real job was leading a team that created five massive computer games for the Commodore 64. The games were so big they needed four floppy disks each, and the project was so complex (and the hardware systems so sketchy) that on more than one occasion, smoke started coming out of the drives.Success was a product that didn't crash, start a fire or lead to a nervous breakdown.Writing software...
Software,Design,Business,Software design 2011-10-29 07:22:09
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