Regex golf. Xkcd 1313: Regex Golf Peter NorvigJanuary 2014revised November 2015 I ♡ xkcd!
It reliably provides top-rate insights, humor, or both. I was thrilled when I got to introduce Randall Munroe for a talk in 2007. But in xkcd #1313, I found that the hover text, "/bu|[rn]t|[coy]e|[mtg]a|j|iso|n[hl]|[ae]d|lev|sh|[lnd]i|[po]o|ls/ matches the last names of elected US presidents but not their opponents", contains a confusing contradiction. But this got me thinking: can I come up with an algorithm to match or beat Randall's regex golf scores? Presidents I started by finding a listing of presidential elections, giving me these winners and losers: We can see that there are multiple names that are both winners and losers: {'adams', 'bush', 'carter', 'cleveland', 'clinton', 'harrison', 'hoover', 'jackson', 'jefferson', 'nixon', 'roosevelt', 'van-buren'}
64 Ways to Get the Tech Skills You Need for Free. If you’re brand new to the world of web design and web development, it makes sense to get started learning to code by utilizing all the free resources available online.
This way, you can discover what you like (and more importantly don’t) before financially investing in a certain set of courses. However, there are so many free resources, classes, and books to pick from! It’s easy to become overwhelmed. (Ever hear of too much of a good thing?!) To make things easier, I compiled a list of 64 FREE web design and development resources. Also, I broke the list down based on topic.
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Introduction to Linux. Linux powers 94% of the world’s supercomputers, most of the servers powering the Internet, the majority of financial trades worldwide and a billion Android devices.
In short, Linux is everywhere. It appears in many different architectures, from mainframes to server to desktop to mobile and on a staggeringly wide variety of hardware. This course explores the various tools and techniques commonly used by Linux system administrators and end users to achieve their day-to-day work in a Linux environment. It is designed for experienced computer users who have limited or no previous exposure to Linux, whether they are working in an individual or Enterprise environment. Upon completion of this training you should have a good working knowledge of Linux, from both a graphical and command line perspective, allowing you to easily navigate through any of the major Linux distributions.
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JSON stands for JavaScript Object Notation.It is a simple and easy to read and write data exchange format just like XML.JSON is smaller than XML, and faster and easier to parse. It is entirely language independent and can be used with most of the modern programming languages. Internet media type of JSON is "application/json". JSON sample: The above sample store informatipn about two countries.BasicallySquiggly brackets({ }) act as containersSquare brackets([ ]) represents arrays.Names and values are separated by a colon(:).Array elements are separated by commas Comparison with XML: As JSON and XML both are data exchange format.There is always comparison between them. Similarity: Both are human readable.Both are hierarchical. A JSON tutorial in JavaScript and jQuery for Beginners.
Javascript has grown from a way to add interactivity on your page, to a language that lets you perform tasks that once belonged to servers.
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Read through the following sections, write and compile some simple programs using the code examples as a guide, and you'll soon know enough C# to start writing your own applications. This language primer contains the following topics: Hello World examined in detail. How execution flow differs in typical Windows and console applications. Keeping your projects organized. Introduction to object orientated programming and classes. Creating your own lightweight data types. Storing data inside your program. Perform calculations and tests on your data. Learn to code.