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We use CentOS VMs at work to emulate our production environment - and it took me a while to figure out how to get the VirtualBox Guest Additions to build reliably on CentOS 6.4/5. This is what I’ve currently settled on as a reliable method. First, make sure that you’ve got the kernel headers and tools installed that you need to build stuff: $ sudo yum update -y $ sudo yum install gcc kernel-devel kernel-headers dkms make....
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Thoughtworkers are passionate about technology. We build it, research it, test it, open source it, write about it, and constantly aim to improve it – for everyone. Our Tech Radar is in its fourth year, and the next edition will be published soon. Sign up here to receive it in your inbox.
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I changed my blogging platform from Wordpress to Pelican . Pelican is a static html generator written in Python. I also changed the whole design. It’s a bootstrap-theme with some little modifications. The reason I changed from Wordpress is the effort to maintain a secure and up-to-date installation opposed to static html files with only minimal Javascript. Also there’s no need for me to use a full fledged CMS like Wordpress when al..
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So after about two years of preferring CoffeeScript for my application code, I'm switching back to JavaScript. Here are some thoughts on my experience. Why I Am Switching Back So in winter 2011, given my personal situation and skillset, the cost/benefit equation for CoffeeScript was an overall positive. What I have found is that in the intervening two years, the equation has reversed to be an overall negative for CoffeeScript. So that's w....
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So after about two years of preferring CoffeeScript for my application code, I'm switching back to JavaScript. Here are some thoughts on my experience. Why I Am Switching Back So in winter 2011, given my personal situation and skillset, the cost/benefit equation for CoffeeScript was an overall positive. What I have found is that in the intervening two years, the equation has reversed to be an overall negative for CoffeeScript. So that's w....
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Recently, I developed a 7 Minute Workout application for Android , which is my first Android application on Google Play. I decided to open source the application so that I can start to build a portfolio of software that I have developed. Feel free to fork, modify, and create a pull request! I decided to develop this application because part of my resolution for the year of 2014 is to get in better physical shape and so far I have b....
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Kennst du die Bücher von Michael Ende? Hast du „Momo“ und „Die unendliche Geschichte“ gelesen? In dieser Folge kannst du ein Werk sehen – als Theaterstück!
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Wer pflegt Tiere, die keinen Besitzer mehr haben? Welche Tiere leben in einem Tierheim? Und wie kann man ihnen selbst helfen? Das lernst du im Bandtagebuch.
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Diesmal sind wir zu Besuch im Filmstudio. Wie werden Filme gedreht und wie funktionieren die Spezialeffekte? Wirf mit uns einen Blick hinter die Kulissen!
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Was ist der Unterschied zwischen Bäckerei und Konditorei? Was kann man in einer Bäckerei kaufen? Und wie wird man eigentlich Bäcker? Das lernst du im Video.
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Was ist der Unterschied zwischen Bäckerei und Konditorei? Was kann man in einer Bäckerei kaufen? Und wie wird man eigentlich Bäcker? Das lernst du im Video.
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Wie werden Eisenbahnen, Kreuzfahrtschiffe und ganze Städte im Miniaturformat nachgebaut? In dieser Lektion bringen wir dir etwas zum Thema „Modellbau“ bei.
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Wie werden Eisenbahnen, Kreuzfahrtschiffe und ganze Städte im Miniaturformat nachgebaut? In dieser Lektion bringen wir dir etwas zum Thema „Modellbau“ bei.
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Was gibt es an Bord eines Schiffs? Worauf muss die Wasserschutzpolizei in einem Hafen achten? In dieser Folge dreht sich alles um die Seefahrt. Schiff ahoi!
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Was gibt es an Bord eines Schiffs? Worauf muss die Wasserschutzpolizei in einem Hafen achten? In dieser Folge dreht sich alles um die Seefahrt. Schiff ahoi!
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Wie feiert man den Karneval in Köln? Mit bunten Kostümen, lauter Musik und natürlich mit viel Kölsch! EINSHOCH6 fahren zur fünften Jahreszeit an den Rhein.Geht auf eine Deutschlandreise und ladet hier ein Video zum "Bandtagebuch mit EINSHOCH6" mit Untertiteln herunter. Zur Lektion mit interaktiven Übungen geht es hier.
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Welcome, friends, to the first AdRoll tech blog of 2014! Last night AdRoll hosted Erlounge here in our Mission street offices; seventeen Erlangers showed up and three talks were given. Juan Puig of Linden Labs gave a lightening tutorial on the use of quickcheck in Erlang, the slides of which you can find here . Marc Sugiyama of Erlang Solutions–boy, they have nice business cards–spoke about debugging techniques in long-lived Erlang syste....
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As detailed in The Curse of Preconceived Notions , before Monday night I had not read any of Joe Rosensteel’s work; instead, I had wrongly disregarded it in any capacity surpassing that of humorous entertainment. When I finally came to my senses and started reading his blog though, starting with The Ubiquitous Yak for the Discerning Obsessive , I found that I really enjoy his thoughts and opinions. So for anyone else that, like me, ma..
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Best collection of Terminal tricks ever: Got any tips or tricks for Terminal in Mac OS X? – Ask Different .
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Hey, you! This is a JavaScript guide intended to introduce new developers and help experienced ones to the JavaScript’s best practices. via JS: The Right Way .
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As a developer, I sometimes forget the power I yield. It’s easy to forget that, when something doesn’t work the way I’d like, I have the power to change it. via Python and Flask Are Ridiculously Powerful .
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Shit happens. Way more often than what most people think. It may seem surprising that a seemingly successful product could fail, but it happens all the time. Although we arguably found product/market fit, we couldn’t quite crack the business side of things. via Chris Hates Writing • Today my startup failed .
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As a developer, I sometimes forget the power I yield. It’s easy to forget that, when something doesn’t work the way I’d like, I have the power to change it. via Python and Flask Are Ridiculously Powerful .
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Programming challenges, uptime, and mistakes in 2013
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engineering.hackerearth.com
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12 years ago
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eng
HackerEarth hosted more than thousand contests in the year 2013 alone. Out of them, there were more than two dozen public programming contests by HackerEarth itself. They include our monthly challenges and hiring challenges. There were over 200 internal and public contests by colleges in the previous year. They include IIT Delhi, IIT Guwahati, IIT Ropar, NIT Warangal, IIIT Jabalpur, NIT Raipur, NIT Calicut, BITS Pilani and many others. And....
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You read that right: one billion. Not one million. Not one hundred million. Not five hundred million. One billion U.S. dollars. This post Billion Dollar March Madness Bracket first appeared on Dan Stroot's Blog
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This post is intended to be a tutorial on how to access the RealityMining dataset using Python (because who likes Matlab?), and a rant on how annoying the process was to figure out. RealityMining is a dataset of smart-phone data logs from a group of about one hundred MIT students over the course of a year. The data includes communication and cell tower data, the latter being recorded every time a signal changes from one tower to the next.
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This post is intended to be a tutorial on how to access the RealityMining dataset using Python (because who likes Matlab?), and a rant on how annoying the process was to figure out. RealityMining is a dataset of smart-phone data logs from a group of about one hundred MIT students over the course of a year. The data includes communication and cell tower data, the latter being recorded every time a signal changes from one tower to the next.
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This post is intended to be a tutorial on how to access the RealityMining dataset using Python (because who likes Matlab?), and a rant on how annoying the process was to figure out. RealityMining is a dataset of smart-phone data logs from a group of about one hundred MIT students over the course of a year. The data includes communication and cell tower data, the latter being recorded every time a signal changes from one tower to the next.
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Getting the word out Hacker News When it comes to marketing, specifically to developers, the most common question is how do I get on Hacker News? The second most commong is, well in addition to there what matters. This fully depends on your audience, and if you really only care about the former versus the broader issue of creating a sustainable model for circulating your content then just read these links then move on. If you want a....
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Getting the word out Hacker News When it comes to marketing, specifically to developers, the most common question is how do I get on Hacker News? The second most commong is, well in addition to there what matters. This fully depends on your audience, and if you really only care about the former versus the broader issue of creating a sustainable model for circulating your content then just read these links then move on. If you want a....
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I listened to every episode of The B&B Podcast back when Shawn Blanc and Ben Brooks recorded it once a week up until just shy of a year ago. It came as a great disappointment, then, when it ended rather abruptly. Thankfully, I did not have to go without for long: today, Shawn announced a new weekly show to be released alongside his members-only Shawn Today podcast. I already subscribed, and I recommend you do as well: if The Weekly Brief ..
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Given my recent track record , you could probably predict what I will write about next just by following Linus Edwards on Twitter and reading his site. Yesterday, Linus posed a thought-provoking question asking for thoughts regarding paid memberships for independent writers, saying that he did not believe in them given their ineffectiveness. An interesting conversation ensued in which many weighed in both for and against. I did not, howe..
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Until yesterday, every time someone mentioned Joe Steel or his blog , I immediately thought of Terrible Podcast Screenplays . I had equated Joe to this one Tumblr, and that humorous pursuit to Joe. In my mind, they were one and the same. As a result, whenever someone referred to his work, I absentmindedly categorized it as comedic and of little value beyond a source of entertainment, and disregarded it accordingly. Late last night though,..
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Introduction We are working on a project where we have to make calls into a web service. Many of the web calls return very large documents that contain many sub-documents. The worst part is, we usually only need a handful of the fields for any given document and those fields tend to be scattered all over the place. Here is a sample of a smaller document:
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Introducing CodePlayer - watch your code like a movie
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engineering.hackerearth.com
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12 years ago
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eng
Ever thought of sharing solution of a coding problem in form of a video with someone, to teach them how you implemented the solution. Or, wanted to see what’s the thought process of a potential employee when he/she solves a difficult problem. Ofcourse you have thought about it. But, it was not exactly possible to watch it as seamlessly as a movie until now. Today, we are announcing the release of HackerEarth’s CodePlayer that exactly does....
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In crisis situations, whether natural (e.g. earthquakes, floods, tsunamis) or political (e.g. violent conflict, forced movement of populations), children are especially at risk. Children who become separated from their families are the most vulnerable. Family Tracing and Reunification (FTR) is the vital process of returning lost children to the safety and protection of their families. Despite advances in information technology the current ..
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When Sid O’Neill posted Farewell to Text Files , I read his article but really had nothing to say on the topic. One person left the world of plain text files — “so what?”, as Dan and Merlin love saying. But Joe Steele’s response, cited above, made me reconsider Sid’s predicament: the low barrier to entry plain text afforded him made testing new writing apps too easy to resist, and so Sid spent more time experimenting than working. At som..
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Sans the rather generic name, I really like Workflow. As an unnamed individual demos the app, he shows off impressive system integration by dragging Editorial-like pre-defined actions taking advantage of the camera, music, and AirDrop APIs into a queue and running it. Alternately, Workflow can also transform these processes into their own standalone apps. Wow. Impressive, to say the least. Even with such a basic feature set as the one on ex..
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I needed a base image “ box ” for my Puppet-Gluster+Vagrant work. It would have been great if good boxes already existed, and even better if it were easy to build my own. As it turns out, I wasn’t able to satisfy either of these conditions, so I’ve had to build one myself! I’ve published all of my code , so that you can use these techniques and tools too!
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I needed a base image “ box ” for my Puppet-Gluster+Vagrant work. It would have been great if good boxes already existed, and even better if it were easy to build my own. As it turns out, I wasn’t able to satisfy either of these conditions, so I’ve had to build one myself! I’ve published all of my code , so that you can use these techniques and tools too!
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Last week Ben Thompson posted two fantastic articles describing the inevitable shift in business models 2014 will likely bring about and the actual implications of Nest’s acquisition by Google , respectively. Then, Friday afternoon, Horace Dediu chimed in with his own fascinating two cents when he published Google’s three Ps . As interesting as I find their examinations of Apple, I enjoyed these in-depth looks at Google immensely. ..
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Back from a weekend camping, I had a lot of catching up to do. Beginning with some four hundred unread tweets yesterday afternoon and approximately fifty RSS items, I have finally made my way to Instapaper where I had Linus Edwards’s ninth installment of his Daily Zen series — The Daily Zen #9 “Exposed & Obscured” — waiting for me. I only found his blog recently, but given the nature of his last post it came as no surprise that I li..
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Death narrates the story of a young girl who steals books to escape the harsh realities of Nazi Germany in Markus Zusak's 'The Book Thief.'
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