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Via climagic 's make slideshow from *.jpg : for p in *.jpg; do ffmpeg -loop_input -f image2 -i $p -t 3 -r 4 -s 1080x720 -f avi - >> slides.avi; done
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Regex Cheat Sheet - DEV Community . Regex For Noobs (like me!) - An Illustrated Guide - Janmeppe.com . regex101.com . Regex101 : Online regex tool. Regular Expressions for Regular Folk . Rubular: a Ruby regular expression editor .
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Building TypeScript Projects with Bazel (Minko Gechev's blog) . DefinitelyTyped: The repository for high quality TypeScript type definitions . gulp-typescript . Modern Emacs Typescript Web (React) Config with lsp-mode, treesitter, tailwind, TSX & more… . React/JSX Typescript support . tslint . Typed-react . TypeScript Tricks: Type Guards (Hacker News) . TypeStrong: TypeScript workflows . Typings: The type definition manager for Typ..
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While our company and our application were constantly growing, we often ran into some consistency issues between code and design. Because we didn't have a design/frontend system and development guidelines to follow, our UI became cluttered and unsustainable.
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While our company and our application were constantly growing, we often ran into some consistency issues between code and design. Because we didn't have a design/frontend system and development guidelines to follow, our UI became cluttered and unsustainable.
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Introduction: By nature HackerEarth has so many programming puzzles. These puzzles bound to have mathematical equations, statements and symbols. Problem Setters often requested us to add support for Latex. Implementation: The obvious and easy solution for this is to implement Latex support for individual pages. But that’s not scalable and maintainable. Then we came with up with a solution where we didn’t have to write custom code for eve....
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Analyzing submissions in real time for social media updates
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engineering.hackerearth.com
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10 years ago
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eng
Objective In Jan 2015, HackerEarth conducted nearly 10-12 hiring challenges, 5-6 coding challenges and numerous college challenges. HackerEarth has a decent social media presence and we wanted to inform our followers about the events at HackerEarth. One of the main objectives of this project was to provide flexibility to the marketing team to automate simple jobs and to focus on sophisticated campaigns. Design Goals As a first step, we d....
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Picked up via Emacs Redux's Display the Keybinding for a Command With Substitute-command-keys , with my own example: (message (substitute-command-keys "Press \\[ar/ox-html-export] to export org file")) Press
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Recently updated org-mode and started seeing an invalid function error: Error (use-package): ob :config: Invalid function: org-babel-header-args-safe-fn Just learned dired enables you to mark files and byte compile via M-x dired-do-byte-compile .
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We at HackerEarth regularly conduct 24-hours internal hackathons usually once a month to boost ourselves to get familiar with new technologies and to come up with great ideas and hacks to increase our productivity. A hackathon project can be anything from creating a new product to creating some tools which helps our own devlopment. In the hakathon in Dec 2015, I came up with the idea to create a profiler which could tell which code inside d....
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We know that we can’t control the outcomes of sporting events or elections. Then why do we become so emotional over what we can’t control?
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Hi. In this post I will share a git pre-commit hook I created for aiding with code beautification. In Linux, I work in two different coding styles: User space and Kernel. The Linux kernel has a very specific coding style and every commit to kernel must adhere to that style. The Linux kernel provides a […]
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When the new .net core reached RC it looked like the perfect time to start to port some of the Nuget packages I've made starting with…
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I’ve discussed my homelessness on here before, but between my camping trip a few months back and my early retirement revelation , I now have a whole new lens to examine it under. Getting Nostalgic So let’s take it back more than 12,500 years: humans aren’t doing anything productive. We’re hunter-gatherers, we set up camp near wherever we think the food (berries, plants, and huntable animals) will be at. We build simple st..
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I’ve discussed my homelessness on here before, but between my camping trip a few months back and my early retirement revelation , I now have a whole new lens to examine it under. Getting Nostalgic So let’s take it back more than 12,500 years: humans aren’t doing anything productive. We’re hunter-gatherers, we set up camp near wherever we think the food (berries, plants, and huntable animals) will be at. We build simple st..
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Core UI principles that transcend frameworks and provide stability in a rapidly changing world of software engineering
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NSDictionary *dictionary = @{ @"key1" : @"val1\n", @"key2" : @"val2\n", @"key3" : @"val3\n", @"key4" : @"val4\n", @"key5" : @"val5\n", @"key6" : @"val6\n", }; NSError *error; NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionary options:0 error:&error]; if (error) { // noooooooooo! } NSString *json = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
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Today we launched a mobile website for homeless people … and it was launched by one of Australia’s many recent Prime Ministers Today alone we served up over 87,000 requests As many of you know, I work with Infoxchange as the operations lead. When I first heard the idea of a website or app for people that have found or are worried about finding themselves homeless in Australia I really didn’t think it made sense - until I saw t..
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Today we launched a mobile website for homeless people … and it was launched by one of Australia’s many recent Prime Ministers Today alone we served up over 87,000 requests As many of you know, I work with Infoxchange as the operations lead. When I first heard the idea of a website or app for people that have found or are worried about finding themselves homeless in Australia I really didn’t think it made sense - until I saw t..
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Smart suggestions with Django, Elasticsearch and Haystack
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engineering.hackerearth.com
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10 years ago
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eng
Introduction One of the primary issues when gathering information from users is suggesting the right options that they are looking for. At HackerEarth, we gather information from all our developers which help us provide them a better experience. So there came a time when we had to suggest very smartly to our users! :D When humongous amounts of data has to be indexed and suggested intelligently, one of the efficient ways to do it is by us....
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Managing roles and access control in a web application
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engineering.hackerearth.com
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10 years ago
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eng
HackerEarth Recruit , is a platform for technical recruitment. Many companies use this platform for candidate assessments and interviewing. There can be multiple admins for a company account. As teams grow in size, access control is a special concern for applications that deal with financial and privacy data. Access control is concerned with determining the allowed activities of legitimate users, but we required more sophisticated and compl....
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We had implemented a javascript logger to capture the pesky issues our users faced and had problems when using the site. When we came up with the idea, we thought it would be just a five minute job where we would just have to add a snippet and would be done, but as it is well know, nothing is simple when it comes to real world production issues. After analyzing a lot of loggers, we decided to use errorception as our javascript logger. I....
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Whenever we roll out an improvement on our platform, we at HackerEarth love to conduct A/B tests on the improvement to understand which iteration helps our users more in using the platform in a better way. Since the available third party libraries did not quite meet our needs, we wrote our own A/B testing framework in Django. In this post we will share a few insights as to how we accomplished this. The basics A lot of products, especially....
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What being a PM is really like - Software is easy, People are hard
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www.craigkerstiens.com
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10 years ago
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eng
In recent months I’ve had the question nearly once a week about advice/tips for becoming a Product Manager or more commonly referred to as PM. These are generally coming from people that are either currently engineers, or previously were and are in some engineer/customer role such as a sales engineer or solution architect. There’s a number of high level pieces talking about PM and it often feels glorious, I mean you get to make product de....
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What being a PM is really like - Software is easy, People are hard
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www.craigkerstiens.com
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10 years ago
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eng
In recent months I’ve had the question nearly once a week about advice/tips for becoming a Product Manager or more commonly referred to as PM. These are generally coming from people that are either currently engineers, or previously were and are in some engineer/customer role such as a sales engineer or solution architect. There’s a number of high level pieces talking about PM and it often feels glorious, I mean you get to make product de....
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