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  Why Dynamic Programming Languages Are Slow

In a statically typed language, the compiler knows the data-type of a variable and how to represent that. In a dynamically-typed language, it has to keep flag describing the actual type of the value of the variable, and the program has to perform a data-dependent branch on that value each time it manipulates a variable.  It also has to look up all methods and operators on it. The knock-on effect of this on branching and data locality is lethal to general purpose runtime performance. T...

   Dynamic language,Slow,Analysis     2012-03-26 15:33:11

  C programming tips in SPARC architecture

If you are a newbie of C programmers in SPARC architecture (For example, working on Solaris), you should pay attention to the following tips:(1) By default, SPARC is big-endian (For Endianness, you can refer http://en.wikipedia.org/wiki/Endianness). It means for an integer (short, int, long, etc), the MSB will be stored in the lower address, while the LSB will be stored in the higher address. (2) SPARC requires byte-alignment. It means for a short (2 bytes long) variable, the star...

   C     2014-06-01 03:56:30

  Accessing Reddit top posts using OAuth

Previously one can use the https://www.reddit.com/r/rprogramming/top.json API to access one subreddit's top posts. This API doesn't require any access token to fetch the data. However, this API may not work all the time. Reddit may block the API's request if it finds that you are using a script or some app which accesses the API now and then. For an app or script which needs to fetch the data routinely, what should we do? Reddit provides one method which can be used to fetch this kind of to...

   REDDIT,OAUTH,TOP POSTS,HOT POSTS     2023-12-16 07:24:14

  The Hungry Programmer

Programming is a lot like eating. Tonight I was hungry. I wasn't at home. I couldn't go to the kitchen for a snack. I looked around and saw only McDonald's across the street. Then I was struck with the same dilemma that I face whenever I leave the comfort of my own home for any decent spread of time: Do I eat crappy food now and satisfy that hunger? Or do I stay hungry for a little longer and eat a healthy meal back at home? As I pondered this dilemma I couldn't help but notice how much i...

   Programmer,Hungry,Coder,Coding     2012-01-19 11:04:30

  How I Learned to Program

Programming is, without a doubt, the most mentally rewarding thing I've ever done. Programming taught me that life should be fun, filled with creativity, and lived to the fullest. Programming taught me that anything is possible; I can do anything I want using only my mind. Programming also taught me that learning is fun. It showed me that the more you know, the more power you have. Programming showed me that a life filled with learning is a life worth living. Programming revealed to me wh...

   Programming,Tips,Write,Practice,Interest     2012-02-04 21:37:12

  4 Things Every Great Online Teacher Knows

Virtual classrooms have become the new norm for education during the pandemic. Teachers from every school have to adjust to this new reality to ensure students keep learning even in the absence of a physical classroom setup.  Thankfully, there are various digital solutions to help teachers conduct online classes without much hassle. One such tool that has revolutionized the online learning market is a Learning Management System (LMS). For schools, the in-house learning management department...

   EDUCATION,ELEARNING,ILEARNING     2021-02-12 03:23:43

  IDEs for Java programmers

IDEs are great helpers to programmers. They can help programmers write less error-prone programs with less time. They have become an inevitable part of many programmers. As a Java developer, you may be familiar with Eclipse already. But do you know other IDEs for Java programmers? We will give an overview of different IDEs for Java programmers. These IDEs are Eclipse, Intellij IDEA, NetBean and BlueJ. Eclipse Eclipse is the most widely used IDE for Java programmers. It's an open source IDE whic...

   Java IDE,BlueJ,NetBeans,Eclipse     2014-08-21 06:15:54

  Is coding going to die?

There is always a voice recent years saying that coding will gradually die, software development is more like an assembly job. i.e, programmer will be more and more like IT engineers. They seldom build something from scratch, instead they achieve the goal by assemble different components. There are people who have similar views around me. From the book "Clean code" written by Robert C Martin-- "One might argue that a book about code is somehow behind the times—that code is no longer...

   Coding,Clean code,Disappear,Analysis     2012-03-15 14:37:35

  Which one has a worse reputation, JavaScript or PHP?

There has a been a lot of criticism of PHP over being a badly designed programming language. JavaScript seems quite a similar language with loose-typing and flexible array declarations/memory management, but is widely adopted by industry leaders such as Google. Google even has a JavaScript style guide. Many people think that PHP has a worse reputation than JavaScript. Carlos Ribeiro gave his analysis on a high level which doesn't touch the language syntax. Attributing JavaScript success to it be...

   JavaScript,PHP,reputation,comparison     2014-05-03 06:26:10

  Concurrency vs Parallelism

Concurrency and parallelism are two related concepts which deal with executing tasks "simultaneously". From Sun's Multithreaded Programming Guide: Concurrency: A condition that exists when at least two threads are making progress. A more generalized form of parallelism that can include time-slicing as a form of virtual parallelism. Parallelism: A condition that arises when at least two threads are executing simultaneously. These two definitions are too formal to be understood easily. On t...

   Concurrency,Parallelism,Thread     2013-08-07 23:42:33

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