SEARCH KEYWORD -- Finite state machine
How to read Haskell like Python
Have you ever been in the situation where you need to quickly understand what a piece of code in some unfamiliar language does? If the language looks a lot like what you’re comfortable with, you can usually guess what large amounts of the code does; even if you may not be completely familiar how all the language features work.For Haskell, this is a little more difficult, since Haskell syntax looks very different from traditional languages. But there's no really deep difference here; you j...
Haskell,Python,Format,Like,Similarity 2011-11-15 08:45:39
Mount DD image on Linux
Yesterday, my Raspberry Pi running Arch Linux was not able to boot with error: Kernel Panic, not syncing: no init found. I spent a night on it, but could not find a working solution. The last option is easy: reinstall the system. That is really the last resort, for I do not want to re-setup everything I have done: samba server, Time Machine server, Xunlei Offline Downloader… Unable to mount the SD card The system does not boot, so I need to find a way to get into the file system to identi...
What does super.clone() do?
Object class has a protected clone() method declared to make it possible for all classes make a clone of itself when needed. The clone() is often used when a new instance of the class is needed while at the same time to maintain the same state as the original object. Any class which wants to have clone enabled has to implement the marker interface Cloneable. If a class which implements Cloneable doesn't override the Object.clone() method, the Object.clone() method will be called to just make a b...
Cloneable,super.clone(),clone,Java 2015-01-07 05:25:52
We’re working our young people too hard
Yesterday, I shared an anecdote involving a school I once attended with a list. This anecdote eventually became the basis for a blog post. Traffic was fairly normal for the first few hours until it found its way onto hackernews.Then it exploded.The comments on both the original blog post and the post on hackernews filled almost immediately with opinionated hackers, teachers and students sharing similar experiences, discussing the problem and figuring out what should be done about it.Repeate...
The iFOREX Trading App is First Class
If you have searched the web for trading application reviews, you are bound to hear terms like ‘state of the art’ and ‘lightning fast execution’. The real question you should ask is - Can you trust the broker who will facilitate your trading to provide you with a robust platform that has several tools that will allow you to successfully trade. You want to make sure that the platform is intuitive and does not take weeks to learn how to use. The iFOREX trading platfo...
Before Python
This morning I had a chat with the students at Google's CAPE program. Since I wrote up what I wanted to say I figured I might as well blog it here. Warning: this is pretty unedited (or else it would never be published :-). I'm posting it in my "personal" blog instead of the "Python history" blog because it mostly touches on my career before Python. Here goes.Have you ever written a computer program? Using which language?HTMLJavascriptJavaPythonC++COther - which?[It turned out the students ha...
Python,History,Programming language,B 2012-01-18 08:08:53
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
Building Security onto Your Mobile Application
Analysts state that more than 75% of the mobile applications will fail the basic security tests in 2015 – Gartner Research. Enterprises that follow the Bring Your Own Device (BYOD) approach and facilitate mobile computing to their employees are susceptible to security threats and other vulnerabilities, unless they implement stringent security measures. In the development or deployment of mobile applications, a business can be severely impacted both financially and otherwise, if they are to...
Web Application Development Company, iPhone App Development Company 2015-08-21 07:22:32
New Linux kernel fixes power-saving issues
Greg Kroah-Hartman has released long-term kernel 3.0.20 and stable kernel 3.2.5. Both contain just a single bug fix that allows PCIe power-saving technology ASPM (Active State Power Management) to be used on systems with a BIOS that activates ASPM on some components, but states in the FADT (Fixed ACPI Description Table) consulted by Linux that ASPM is not supported. According to Matthew Garrett, who developed the patch, the change can reduce the power consumption of a Thinkpad X220 by 5&nbs...
Linux kernel,Power saving,Fix 2012-02-08 10:10:36
The seven rules of Unobtrusive JavaScript
I've found the following rules over the years developing, teaching and implementing JavaScript in an unobtrusive manner. They have specifically been the outline of a workshop on unobtrusive JavaScript for the Paris Web conference 2007 in Paris, France. I hope that they help you understand a bit why it is a good idea to plan and execute your JavaScript in this way. It has helped me deliver products faster, with much higher quality and a lot easier maintenance. 1. Do no...
JavaScript,Feature,Tips 2012-01-18 08:21:39
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