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  Strict mode in JavaScript

1. Introduction In addition to normal mode, ECMAScript 5 includes the other mode : strict mode. It means it will make JavaScript codes execute in a more strict environment. The purposes to have strict mode are: Remove some unreasonable and parts of JavaScript syntax. Reduce some of the quirk behaviors. Remove some insecure parts of code execution. Make the execution environment more secure Improve interpret efficiency and increase the execution speed Build foundation for future JavaScript versi...

   JavaScript, Strict mode. Introduction     2013-01-17 05:00:26

  Consistency between Redis Cache and SQL Database

Nowadays, Redis has become one of the most popular cache solution in the Internet industry. Although relational database systems (SQL) bring many awesome properties such as ACID, the performance of the database would degrade under high load in order to maintain these properties. In order to fix this problem, many companies & websites have decided to add a cache layer between the application layer (i.e., the backend code which handles the business logic) and the storage layer (i.e., the SQL d...

   REDIS,CACHE,DATABASE     2019-07-07 08:14:16

  Go vs C benchmark. Could Go be faster than C?

During last semester I was attending Multiprocessor Architectures course, given at Facultad de Informática where I study my Computer Science degree. As part of the assignments due to pass the course, we had to do several programs written in C to benchmark matrix multiplication by testing different techniques and technologies. First of all we had to do a secuential program in three different versions: A normal one where the result matrix is ordered by rows and the loops range the matrix by ...

   Gp,C,Benchmark,Faster,Speed,Comparison     2012-02-08 10:09:07

  SQL Injection through HTTP Headers

During vulnerability assessment or penetration testing, identifying the input vectors of the target application is a primordial step. Sometimes, when dealing with Web application testing, verification routines related to SQL injection flaws discovery are restricted to the GET and POST variables as the unique inputs vectors ever. What about other HTTP header parameters? Aren’t they potential input vectors for SQL injection attacks? How can one test all these HTTP parameters and whic...

   Code security,SQL injection,HTTP header     2012-04-05 11:42:04

  Learn Vim Progressively

tl;dr: Want to learn vim (the best text editor known to human kind) the fastest way possible. I suggest you a way. Start by learning the minimal to survive, then integrate slowly all tricks.Vim the Six Billion Dollar editorBetter, Stronger, Faster.Learn vim and it will be your last text editor. There isn’t any better text editor I know. Hard to learn, but incredible to use.I suggest you to learn it in 4 steps:SurviveFeel comfortableFeel Better, Stronger, FasterUse vim ...

   Vim,Learning,Skills,Tips,Steps,Progressi     2011-09-08 10:44:06

   7 Incorrigible Mistakes Of Mobile App Design

Plethora of mobile apps are launched every day, let alone a month or a year. With such a rising competition making an app which is not liked by people is a committal sin not just from a user's perceptive but also due to so many people and their efforts attached to it. In this blog we will discuss some of the very important factors which one should know before crafting an app. It's obviously not worth crying over the split milk as 80% of the users not even open an app again if they encounter ...

   Mobile App     2015-06-18 08:08:48

  Microsoft is transforming XBox into a PC controlled by expressions

According to the Voice of China "News Coverage" report. When Apple products are changing  the world, the original computer giant Microsoft is also quietly looking for their new foothold in the field of electronics. This time the breakthrough is from its game console Xbox.Xbox was originally a single function console, there are signs that Microsoft may be planning for the Xbox into the computer with new functions. The selling point of this new product lies in its function of communic...

   Microsoft,XBox,New PC,China     2012-04-01 06:57:04

  JavaScript efficiency catch up

JavaScript is a very flexible language, we can write JavaScript code freely with various styles, different kinds of codes will have different execution efficiency. Here we summarize some tips we get from our development. Efficiency of JavaScript itself JavaScript has execution context chain, closures, prototype inheritance, eval etc. It brings us some magic features, but it also introduces the performance issue, if we don't use them properly, it will affect the codes execution efficiency. 1. Glo...

   JavaScript,efficiency,event delegation,eval     2013-04-02 04:08:46

  Silicon Valley engineers have something to say about work from home

Quitting from Google and joined Yahoo which was thought as a declining giant, Marissa Mayer has been trying to prove that she has the ability to lead this Internet giant to reverse the decline. In order to boost the low morale of the employees, Meyer tried to transplant Google's work culture to Yahoo with office decoration, free lunch and issuance of smart phones, these generous measures let her win the applause of the Silicon Valley.But a recent ban issued by Meyer has attracted a lot of contro...

   Work from home,Yahoo, Marissa Mayer     2013-03-07 02:39:23

  5 Reasons to Join a Startup After Graduating

After I wrote my last post, a surprising number of people emailed me asking why I decided to join a startup after graduating from Duke. Many of those I heard from face similar decisions today: either they are college seniors choosing between a big company and a startup, or they are recent graduates who work at a big company and are thinking about making the switch. What’s interesting is that most are already leaning towards the startup career path: it seems they just want someone to ...

   Startup,Graduation,Work,Advice,Passion,Learn     2011-11-23 08:12:13

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