SEARCH KEYWORD -- Obvious
7 Resources Every JavaScript Developer Should Know
A web developer today is expected to be an expert in every aspect of their craft and JavaScript is no exception. Years ago JavaScript seemed to be more of an annoyance, producing those trailers at the bottom of the browser. This has changed and JavaScript is a first-class citizen as a functional programming language and what seems like an unlimited number of resources covering the language. I have been doing more and more JavaScript lately, both on the front-end and some node.js...
JavaScript,Resource,Study,Website 2012-03-15 12:54:40
Optimization Tricks used by the Lockless Memory Allocator
With the releasing of the Lockless Memory Allocator under the GPL version 3.0 license, we can now discuss more of the optimization tricks used inside it. Many of these are things you wouldn't want to use in normal code. However, when speed is the ultimate goal, sometimes we need to break a few rules and use code that is a little sneaky.The SlabA slab is a well-known technique for allocating fixed size objects. For a given object size, a chunk of memory is divided up into smaller regions of that ...
Optimization,Memory allocation 2011-11-16 08:02:16
Recent Online Scams You Need to Know About
It’s easy to forget that the internet is a dangerous place and that it’s easy to become a victim. Everyone wants to think that they’re too smart to fall for online scams or obvious fraud. Yet actions speak louder than words, and 97% of people still struggle to identify a phishing scam. Awareness is critical in beating the cybercriminals. So here are examples of the latest online scams and tips on how to avoid becoming a victim of similar attacks. What are Online Scams? Online s...
DATA SECURITY,VPN 2019-12-12 07:18:36
Steve Jobs's prediction about wireless,iPad and App Store in 1983
1983 was still a year uncultivated. That year, Apple released the first personal computer Apple Lisa with graphical user interface in the world, TCP/IP was released less than two years, the Internet was basically still a wasteland. General people had few knowledge about computer. Steve Jobs still needed to start with "What is the computer" in his speech. Today, we have become accustomed to social networking, smart phones and mobile Internet, it was really unbelievable at that time. That ye...
Steve Jobs, record,Apple,prediction 2012-10-03 04:37:17
Leaving comments in real life
As a programmer I like to write comments because I know that some future person (often me) is going to need to know something about my code that won't be immediately obvious from reading it. Here's a recent example from my homebrew display's code:// protocol_init: Set up a newly powered-on string of lights. The lights are arranged// in an array wired diagonally starting from the bottom left. For ease of programming// it's better if they are given numbers which correspond to coor...
Comment,Programming,Style,Format,Coding standard 2011-11-15 11:42:19
“Native vs Web†Is Total Bullshit
The web is dead. HTML5 is the be-all end-all of the future. Users are spending more time on apps and less time on the web. You can do anything on the web that you can in a native app. Yawn. Here’s how I feel whenever I hear/read anything about the overplayed “Native Versus Web†argument: It’s not an either-or decision Why aren’t we still arguing over “Print vs Digital� Well, because (most) people understand that each medium has its place in thi...
Web app,Native app,Comparison 2012-02-24 05:30:03
Vim anti-patterns
The benefits of getting to grips with Vim are immense in terms of editing speed and maintaining your “flow†when you’re on a roll, whether writing code, poetry, or prose, but because the learning curve is so steep for a text editor, it’s very easy to retain habits from your time learning the editor that stick with you well into mastery. Because Vim makes you so fast and fluent, it’s especially hard to root these out because you might not even notice them...
Vim,Anti-pattern,macro,syntax 2012-02-08 10:06:15
Tips on Writing for Tech Blogs
If you know your stuff when it comes to tech, you might be inspired to start contributing articles to tech blogs. A friend or colleague may suggest the idea to you, or you may see an invitation for submissions, much like the one on this website. Sounds like a great idea; but what do you know about writing articles, blog posts, or other types of content? Writing is a skill, and there are also practical aspects to writing that you need to be aware of before you start creating your own pieces. Gett...
It makes nothing but sense...Mobile Payment...
Chinese New Year is around the corner, every place in China and lots of places in the work have been in the CNY mode. People are rushing out to get all the stuff ready to welcome the New Year Eveand the Spring Festival. I also packed my stuff and flew back to my howntown in China to enjoy the great moment to stay with families and hang out with friends whom I have't been seeing for almost one year. I am exited... However, the first thing stunned me is not my friends but the mobile payment s...
CHINA,WECHAT PAY,ALIPAY,MOBILE PAYMENT 2018-02-12 00:07:46
Comparing Floating Point Numbers, 2012 Edition
We’ve finally reached the point in this series that I’ve been waiting for. In this post I am going to share the most crucial piece of floating-point math knowledge that I have. Here it is:[Floating-point] math is hard.You just won’t believe how vastly, hugely, mind-bogglingly hard it is. I mean, you may think it’s difficult to calculate when trains from Chicago and Los Angeles will collide, but that’s just peanuts to floating-point math.Seriously. Each ti...
Floating point number,Comparison,True value 2012-02-23 07:11:03
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