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  CSS and HTML5 responsive images

With the popularity of Retina screen, the requirement of the images in the webpages is higher. How to make sure the image still clear while enlarging twice on retina screen? This brings much trouble to web developers, the good news is CSS3 and HTML5 is trying to change this, we can use response image. What is responsive image? It means user agent loads different images according to different resolutions of output devices, it will not waste bandwidth as well. In addition, it can load respective ...

   CSS3, HTML5,image-set,responsive image     2013-03-10 03:30:07

  Java Interview Questions

Currently there are many articles online which summarize the list of Java interview questions. Some cover lots of basic questions and some cover some specific questions in specific area such as multithreading. In this post, we will not cover the really basic questions, we will cover something different. For basic question, you can read Java Interview Questions。 Basic What is primitive data type? How many primitive data types in Java? What are they? -- A primitive type is prede...

   JAVA,SECURITY,INTERVIEW,CAREER,MULTITHREADING,QUESTION,JAVA INTERVIEW,JAVA CORE     2019-01-21 07:07:08

  Efficiency of code execution

If you want to optimize your program codes, you need to find their Hotspot, i.e, the codes which are executed most frequently. If you can optimize this portion of codes a bit, you may gain much improvement of your code efficiency. Here I give you three examples about efficiency of code execution.1. PHP's Getter and Setter (From Reddit)This example a quite simple, you can skip it if you want.Consider the code below, we can find it's slower when we use Getter/Setter method to read a member variabl...

   Code, Efficiency,Analysis,Trick     2012-07-13 10:59:21

  10 Tools Every Software Developer Should Use in 2018

The main problem I noticed about most programmers is that even though they know about latest software development tools, they never really spend significant time to learn them well. As a programmer, I always try to learn new tools and latest technologies. At the same time, I also look to improve my knowledge of tools which I have been using for many years. Whether you're a front-end developer, full-stack programmer or part of a DevOps team, you should familiarize yourself with the latest develop...

   SOFTWARE DEVELOPMENT, SOFTWARE DEVELOPMENT TOOLS, PROGRAMMING TOOLS     2018-04-28 07:08:00

  Sass Style Guide: A Sass Tutorial on How to Write Better CSS Code

Writing consistent and readable CSS that will scale well is a challenging process. Especially when the style sheets are getting larger, more complex, and harder to maintain. One of the tools available to developers to write better CSS are preprocessors. A preprocessor is a program that takes one type of data and converts it to another type of data, and in our case CSS preprocessors are preprocessing languages which are compiled to CSS. There are many CSS preprocessors that front-end develop...

   CSS,SASS,TUTORIAL     2015-09-17 06:40:47

  When no need 3 handshakes in TCP?

Overview In the previous article titled Why TCP needs 3 handshakes simple answers were provided to the following three questions: Can application data be carried during the first handshake? Can application data be carried during the second handshake? Can application data be carried during the third handshake? Briefly, traditional TCP requires a three-way handshake to establish a connection, and during these three handshakes, only simple SYN and ACK packets are sent. From the perspective o...

   REASON,NETWORK,TCP,EXPLANATION     2024-09-29 03:19:35

  Processing Unicode Data in Python - A Primer to Understand Non-English Data Processing

Introduction: Currently we live in a world where people of diverse cultures/backgrounds use electronic devices to express their ideas, do their daily work that earns them their daily bread, and entertain themselves using content that is created using their own language and so on. Naturally, in order to make all these things happen, any computational instrument, be it a laptop or a desktop computer, or a smartphone, or something else, should be capable enough to serve all of these things in a man...

   PYTHON,UNICODE,UTF-8,NON-ENGLISH DATA,ASCII CODE     2019-04-10 00:55:19

  Go Error Best Practice

Being indulged in Go for quite a while and having implemented web-related programs, grpc interfaces and Operators, I seem to be an advanced beginner now. However, I am still a raw hand in production-environmental debugging, which is cumbersome if done by querying logs or error messages. Imagine the scenario that a full-text search is called when the specific location of the error log is missing. Then what happens when those error logs are not only in one place? Yes, my error logs can no longer h...

   GO ERROR,ERROR HANDLING     2021-10-07 07:38:28

  SIEM Big Data Visualization : Dashboard for Monitoring Scam Events in Critical Infrastructure

Project Design Purpose: In a Security Information and Event Management (SIEM) system, effective monitoring and visualization of scam events is crucial to detecting and responding to cyberattacks. Cybercriminals often use deceptive methods to exploit individuals or organizations, aiming to steal sensitive information, financial assets, or disrupt operations. This project seeks to develop a web plugin dashboard to help cybersecurity researchers and managers better understand the scope and impact ...

       2024-10-05 20:47:09

  File upload in PHP

File is a special kind of form data, when being uploaded to the server through HTTP POST request, PHP will create a $_FILES global array, the relevant file information will be stored in this global array. We will illustrate file upload with some code snippets using PHP and look into the internal work mechanism. Lastly will talk about file upload security. File upload In order for users to upload files in client side, we have to provide a form on the user interface. Since the uploaded file is a s...

   File upload,PHP     2012-11-30 22:01:28