SEARCH KEYWORD -- Class


  Why you should be careful about optimizations

In one of my current javascript projects, I have to deal with 3D voxel coordinates. And, sometimes, I have floating points coordinates which must be converted to integers in order to convert them into proper array index. Javascript is a wonderful language, really. However, implementations are sometimes weird, and the way to do something can sometimes have very huge impacts on the performances. Worse, sometimes the classical way is more expensive than the tricky one. So, some peo...

   JavaScript,Bitwise,Floor,Trick,Optimization     2012-05-02 11:29:20

  The Pitfall of WebSocket Disconnections Caused by Browser Power-Saving Mechanisms

Preface Recently, while using WebSocket (WS) connections, we encountered frequent disconnection issues, occurring hundreds of times per day for a single user. Although using the auto-reconnect feature of socket.io allowed us to quickly restore connections after disconnections, it did not guarantee that every reconnection would successfully receive WS messages. Therefore, we conducted several investigations and tests. Ultimately, we identified the root cause of the issue: the browser's power-savi...

   WEBSOCKET,JAVASCRIPT,POWER SAVING,TROUBLESHOOTING     2024-06-23 01:19:39

  The Go Pointer Magic

Go is a language with the pointer type, by which we can Pass pointer into a function and update value in-place. Add methods to a struct as (* T) A, which is different from (T) A(). However, the pointer is type-safe in Go, meaning that there are such restrictions of the pointer. Different types of pointers are unconvertible. Pointer type cannot be used for calculation. Pointer types cannot be compared, either == nor !=. No mutual assignment between different pointer-...

   GOLANG,POINTER,UNSAFE     2021-10-03 02:18:57

  ScrollerJS vs Odometer

Both ScrollerJS and Odometer are two JavaScript libraries to transition one number to another number with animation. They provide user a fancy animation about scrolling numbers. These libraries can be used in many scenarios such as user statistic counter, timer or odometer. This post is going to have a comparison on these two open source libraries. Below is a table which lists the features the two libraries have: Feature ScrollerJS Odometer Language JavaScript and CSS JavaScript and CSS S...

   JavaScript, Odometer, ScrollerJS, Open source, CSS Transition     2015-05-13 02:10:55

  Generate certificate in Java -- Certificate chain

In previous post, we have introduced the use of Certificate and how to generate self signed certificate using Java. In this post, we will show you how to generate a certificate chain. Sometimes we may only have a certificate request or we don't have a trusted certificate which can be used for business. Now we need to have a trusted CA to sign our certificate so that it can be used on SSL communications. To generate a certificate chain, we may first have our own certificate(A), then we may use ot...

   Java,Certificate chain,Creation, Pure Java     2014-07-30 08:24:52

  Generate certificate in Java -- Store certificate in KeyStore

In previous post, we have explained how to create a certificate chain in Java. After generating the chain, we need to store it somewhere so that it can be used later when we are doing the actual SSL communication, either in a key store or trust store. This post will show you how to store the private key and its associated certificate chain in a keystore file. There are different types of keystore in Java, in this post, we will choose the JKS to demonstrate how to store the certificate chain. Whe...

   Java,Certificate chain,Keystore     2014-08-20 03:56:39

  Coming up Next for JavaScript Web Apps Is Next.Js 3

Are wondering who is going to be the next PHP of the internet; except JavaScript. Next.js is all set to bring the PHP experience to JavaScript with its latest version. As the technology continues to be considered as a “win” amongst a number of developers across the globe, professionals are trying to improve it as much as they can. Because of its minimalist approach to server-rendered apps, this highly customizable framework can be recommendable for beginners as well as experienced pr...

   NEXT.JS3,JAVASCRIPT     2017-11-20 23:43:38

  New Unreal Engine 5 and Nvidia Technology in Black Myth: Wukong

In this article, we explore the cutting-edge Unreal Engine 5 and Nvidia GPU technologies used in the highly anticipated AAA game Black Myth: Wukong this year to enhance its game graphical quality. Our insights are based on an interview article of the technical lead of Game Science Interactive Technology, Geekerwan's experimental analysis, and Nvidia's official Black Myth: Wukong showcase featuring the RTX 40xx series. As a software engineer, my perspective may differ from that of a game develop...

       2024-08-24 09:32:55

  Steve Jobs attacks Android just for show?

Steve Jobs has a famous statement which says Android is a stolen product. What does Google CEO Larry Page think about this statement? Recently, Page said in an interview with Bloomberg Businessweek that Apple hates Android just for show. He believes people should not look only to the competitions, but should focus on the potential cooperation opportunities to make the world better.The following is overview of the interview:Q: When you took over as CEO, one of your goals was to take the cle...

   Steve Jobs,Android,Larry Page     2012-04-08 08:30:33

  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

RECENT