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  Format JSON data on Ubuntu

JSON now becomes a very popular data format because of its simplicity and light-weight. Nowadays many RESTful APIs will offer a choice of exchanging JSON data between the server and client. Sometimes the data may not be formatted and it cannot be easily read by human beings. It's frequently desired that the unformatted JSON data should be formatted before read. Today we will show a few ways to format JSON data on Ubuntu. Assume we have a json file test.json with below content. { "title": "Test"...

   RUBY,PYTHON,NODEJS,JSON,JQ,PERL,LINUX,UBUNTU,YAJL     2016-08-17 11:05:09

  The biggest change ever of iOS--iOS 7

In this year's WWDC, Apple unveils its new iOS--iOS 7. The new iOS has the most significant change since it first came to the public. But many people may be disappointed about this. I am not one of them. In WWDC, Tim Cook said iOS 7 is more flatter than before and it has a completely new user interface design, new slide to unlock feature, official share and weather apps are redesigned. The weather apple now has almost the same feature as the newly updated Yahoo weather application. Ive said the...

   iOS 7,new design,Apple     2013-06-10 22:39:45

  C Preprocessor Hell

Lisp programmers should stop reading right now because they'll likely suffer severe injury of the jaw muscles as they laugh themselves silly at how hard it is to do some things in C. The C language has a pre-processor (typically called cpp) that is both infuriating and powerful. How powerful is usually best described as 'just too little' and it has happened more than once that I found myself almost - but not quite - able to do what I wanted to do. The frustration can run very deep at ti...

   C,Preprocessor,Lisp,Hell     2012-01-19 10:22:31

  Simple explanation about process and thread

Process and thread are two basic concepts of operating system, but they are a bit abstract which cannot be  mastered easily. There is an analogy which explains these concepts very well. 1. The kernel of the computer is CPU, it handles all the computing tasks, it's like a factory and will run all the time. 2. Assume there is power limitation for the factory, it can only supply to one unit once,i.e, when one unit is working, other units must stop and wait. The meaning behind this is that eac...

   Process,Thread,CPU,Operating system     2013-04-24 11:33:10

  Cybertruck's 48V Power: Revolutionizing Automotive Standards

Tesla's Cybertruck commenced its deliveries in the United States this month, marking a significant milestone for the innovative pickup. Distinguished by its unique design, the Cybertruck features a cargo bed panel that opens to facilitate easy loading of goods. This groundbreaking vehicle has achieved numerous world-first distinctions: The world's inaugural stainless steel car, boasting a body reportedly resistant to bullets. Its angular shape adds an extra layer of safety, causing severe col...

   FORD,48V,CYBERTRUCK,TESLA     2023-12-24 17:06:59

  Singleton Design Pattern in Java

Singleton is frequently used in applications where resource may be expensive to create and no instance specific state needs to be maintained. For example, when creating database connection, a singleton may be needed. Today we will share the famous Singleton design pattern in Java. 1. Definition Singleton design pattern is a design pattern that restricts the instantiation of a class to one object. It is one of the most well-known design patterns. 2. Application Singleton ...

   DESIGN PATTERN,SINGLETON,MULTITHREAD,JAVA     2020-04-11 02:16:28

  10 Time-Management Tips That Work

Chances are good that, at some time in your life, you've taken a time-management class, read about it in books, and tried to use an electronic or paper-based day planner to organize, prioritize and schedule your day. "Why, with this knowledge and these gadgets," you may ask, "do I still feel like I can't get everything done I need to?"The answer is simple. Everything you ever learned about managing time is a complete waste of time because it doesn't work.Before you can even begin to manage time,...

   Time management,Tips,Work,Overhead     2011-10-10 05:24:01

  Fujitsu CTO: Flash is just a stopgap

Flash is a necessary waystation as we travel to a single in-memory storage architecture. That's the view from a Fujitsu chief technology officer's office. Dr Joseph Reger, CTO at Fujitsu Technology Solutions, is that office-holder, and – according to him – flash is beset with problems that will become unsolvable. He says we are seeing increases in flash density at the expense of our ability to read and write data. Each shrink in process geometry, from 3X to 2X and onto 1X, ...

   Flash,Memory,Bottleneck,Limitation,Futur     2011-08-12 07:31:34

  Hash Tables in Javascript

IntroductionHash tables are a permutation of associative arrays (i.e. name => value pairs). If you use PHP, then you are very familiar with this type of data structure already since all PHP arrays are associative.The Javascript language implements very loose and somewhat limited support for associative arrays. Any JavaScript array can use other objects as keys, making it a hash, but there exists no formal constructor for initializing them and it is more or less unweildy to work with. A short ...

   JavaScript,Hashtable,Implementation,Array     2011-11-26 02:43:40

  PHP Sucks! But I Like It!

I read a rather interesting post yesterday called PHP: a fractal of bad design. It's been getting a lot of traffic among the PHP community lately because it's rather inflammatory. But to be honest, it does make a lot of really good points. It also makes a lot of mistakes and misses a bigger picture. A Few Mistakes The post makes quite a few mistakes and odd apples to oranges comparisons. Let me point out the major ones that I saw. No Debugger - PHP has xdebug which works quite...

   PHP,Bad design,Like     2012-04-12 06:15:42