SEARCH KEYWORD -- Exercise
Deep Dive into Spin Locks in Golang
In concurrent programming, a Mutex is a commonly used synchronization mechanism to protect critical resources and prevent data races. However, in certain specific scenarios, especially when the lock-holding time is short and the number of threads is limited, a more lightweight lock known as a Spin Lock can provide higher performance. What is a Spin Lock A Spin Lock is a form of busy-wait lock. When a thread attempts to acquire a lock held by another thread, it continuously checks the lock's stat...
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
Becoming a Better Developer Part 3: Enjoy the Panorama
If you're trying to grow your startup you've come to the right place. Get my 170-page ebook on how to grow a startup and join thousands of self-funded entrepreneurs by subscribing to my newsletter at right. I’m writing this while sitting on a beach chair overlooking the Gulf of Guinea near Cape Coast in Ghana, West Africa. Although it’s slightly overcast the view is amazing, with whitewater stretching out in both directions as far as my laser-corrected eyes can see. Bein...
Interview Programming Problems Done Right
Introduction Why 37signals Doesn't Hire Programmers Based on Brainteasers and my comment on HN generated a lot of responses, so much so that I'm writing this post to properly explain the essence of a good (IMHO) interview programming problem. Pascal's Triangle Pascal's Triangle is a shortcut for getting coefficients most often used binomial probability. The root element is 1. Every other element is the sum of the one or two above it (diagonally left and diagonally right). There are severa...
Interview,Programming problem,Pascal,Triangle 2012-01-06 09:46:43
How to Think Creatively
I grew up hungry to do something creative, to set myself apart. I also believed creativity was magical and genetically encoded. As early as the age of 8, I began sampling the arts, one after another, to see if I'd inherited some gift.Eventually, I became a journalist. For many years, I told other people's stories. I was successful, but I rarely felt truly creative.The first hint I might have sold myself short came in the mid-1990s. In the course of writing a book called What Really Matters, Sear...
Creative thinking,Saturation,Incubation,Illumination,Verification 2011-11-14 08:39:11
A Better Way to Learn How to Program
Learning how to program can be a nightmare. An aspiring coder has to jump through many unpleasant hoops and mysterious error messages just to get "Hello, World!" printed on the screen. Then, she's left wondering, "OK, now what? How do I actually build something?"As game developers seeing someone struggle through this, we should be screaming, “NOOOOO!†The whole thing reeks of bad game design: a lot of work with no reward, unclear failure cases, advanced features pushed on new players...
Programming pattern,Game design,Derivati 2011-09-19 13:51:17
In praise of impractical programming
Although it’s become a cultural mainstay now, I still remember when I first saw that thick book — the one with the wizard on the cover — about a school for magic where wonders are easily conjured by those who know the proper spells. Of course, I’m talking about the Structure and Interpretation of Computer Programs. There was that other book with the spells, but the “Wizard Book†sincerely claimed to teach magic. For the past few years, I’ve been ...
Impractical Programming,Structure,Scheme,Practical 2011-12-05 12:28:58
The Best Wireless Headphones for Everyday Use
Wireless headphones have consumed a little bit of slamming during the previous six months, complying with Apple's debatable choice to clear the newest set of Apple iPhone of the reliable old earphone port. HTC observed fit using the U Ultra and also in businesses and undergone lots of objection from both customers and market professionals. Several sets are more concentrated on sports and also exercise and set in additional functions to perform so that some others are created mainly for hearing t...
HEADPHONES,WIRELESS 2017-10-12 10:54:56
Overlap Detection
How does one detect when two strings overlap? In the case below, the four-letter suffix of string 1 matches the four-letter prefix of string 2. 1: "Fire at Will" 2: "William Riker is number one" Sometimes there are several matches; finding the longest is not always straight forward. 1: "Have some CoCo and CoCo" 2: "CoCo and CoCo is here." 2: "CoCo and CoCo is here." 2: "CoCo and CoCo is here." The naïve solution is to take...
String overlap,detection,python,implementation 2012-03-05 05:05:36
Paradigms of Iteration in JavaScript
One of the joys of programming is that no matter how simple a problem may seem there are always tons of ways to solve it. It can be good practice to go back and revisit fundamentals by solving simple problems with as many implementations as you can think of. In this post we'll explore approaches to basic iteration in JavaScript. This style of exercise is a good interviewing technique, too, because it's open ended and leads to good discussions. The focus isn't a tricky, wacky problem you're...
JavaScript,Iteration,Wrap,Recursive,For,Loop 2012-01-08 10:11:15
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