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  When and Where to Use Pointers in Go

When declaring variables in Go, we usually have two syntax options: In some scenarios, pointers; in others, reference; sometimes, either. It’s great to have choices, but it is also confusing sometimes as to which one in which scenario. To be more reasonable in choice-making, I started from pointers, walked through their natures, and summarized some rules in using them in Go. from unsplash, Jordan Ladikos Pointers Go has pointers. A pointer holds the memory address of a ...

   POINTER,GOLANG     2022-05-01 02:24:43

  Secret Symphony: The Ultimate Guide to Readable Web Typography

Right now, there’s a mathematical symphony happening on your website.Every single one of your readers is subconsciously aware of this symphony, and more important, they are all pre-programmed to respond to it in a particular way.The question is this:Is your site’s symphony pleasing and inviting to your readers, or does it turn them off and make it harder to communicate with them? The Mathematical Symphony of TypographyAs it turns out, this symphony is not unique to websites. You...

   Web design,Typography,Math,Golden rule     2011-12-23 07:48:10

  Decision Trees in C#

Decision trees are simple predictive models which map input attributes to a target value using simple conditional rules. Trees are commonly used in problems whose solutions must be readily understandable or explainable by humans, such as in computer-aided diagnostics and credit analysis. Download source code Download sample applications Download the full Accord.NET Framework Introduction Decision Trees give a direct and intuitive way for obtaining the classification of a new instance f...

   C#,Decision tree     2012-03-23 10:00:56

  Why I Hate Android

Why do I hate Android? It’s definitely one of the questions I get asked most often these days. And most of those that don’t ask probably assume it’s because I’m an iPhone guy. People see negative take after negative take about the operating system and label me as “unreasonable” or “biased” or worse. I should probably explain. Believe it or not, I actually don’t hate Android. That is to say, I don’t hate the concept of Androi...

   Android,Hate,Feature     2012-01-10 07:19:27

  How to create a language in one day

About a year ago I worked on a very interesting project which involved creating a unique world with all its history, people, physics, metaphysics and so forth. I like fictional worlds that are thoroughly created and I have always marveled at people like Tolkien or Richard Garriot who go such great lengths and even create languages for their worlds. I have since many years felt that it would be awesome to create my own language and I’m probably not alone in feeling that.When I started stud...

   Language,Develop,Short period,Programming language     2011-10-19 14:15:24

  Ajax file upload tutorial

Step 1 - AJAX file uploadAJAX file upload tutorialFirst of all I have to say that to create a pure AJAX file upload system is not possible because of security limitations of JavaScript. All of the Ajax upload systems I know use some third party tool/package or only mimics the AJAX feeling. Even so it makes file upload process a bit nicer. In the next section I will present you a solution which imitates the AJAX process, but uses a normal upload process and iFrames.The concept: Create a simp...

   Ajax,File upload,PHP,Tutorial,IFRAME     2011-04-22 13:34:33

  A Baseline for Front-End Developers

I wrote a README the other day for a project that I’m hoping other developers will look at and learn from, and as I was writing it, I realized that it was the sort of thing that might have intimidated the hell out of me a couple of years ago, what with its casual mentions of Node, npm, Homebrew, git, tests, and development and production builds. Once upon a time, editing files, testing them locally (as best as we could, anyway), and then FTPing them to the server was the essential ...

   Front-end,JavaScript,Baseline     2012-04-18 07:13:49

  5 things my 4-year-old taught me about technology

One of the great things about being a parent is that you get to see how kids use technology. I have a 4 year-old daughter who loves to mess around with my phone, watch videos on YouTube and play Angry Birds.It’s fun to watch her interact with these things, not only because she’s already better at some of the games than me. The really interesting stuff happens when stuff doesn’t work the way she expects it to, or when she finds ways to use tech that I hadn’t thought of...

   Learning,Children,Siri,Voice,Tech,Course     2011-10-26 07:07:48

  Understanding lvalues and rvalues in C and C++

The terms lvalue and rvalue are not something one runs into often in C/C++ programming, but when one does, it’s usually not immediately clear what they mean. The most common place to run into these terms are in compiler error & warning messages. For example, compiling the following with gcc: int foo() {return 2;} int main() { foo() = 2; return 0; } You get: test.c: In function 'main': test.c:8:5: error: lvalue required as left operand of assignment True, this code ...

   lvalue,rvalue,C++,locator value,elaboration     2011-12-15 07:51:38

  Top 10 Go Coding Traps and Tips

Go is currently the most common programming language in cloud development. Though I use it very much in my work, I am still repeating certain mistakes. This article is more a record of these errors, figuring out the causes and solutions so that people who read this article will save themselves time when coming across the same problems. Let’s cut through to the tips. Don’t rely on index var in the for loop The most common mistake we make is that we often create goroutine&nbs...

   TIPS,GOLANG,NIL INTERFACE     2021-07-03 23:45:51

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