shorts.jeffkreeftmeijer.com

jeffkreeftmeijer.com

Experimenting with Node.js — Jeff Kreeftmeijer

http://jeffkreeftmeijer.com/2010/experimenting-with-node-js

Experimenting with Node.js. If you see extra mouse cursors moving around: don’t worry, they’re part of the demo. You can always disable. Them if you want. I’ve written a follow-up. On this article, in which I improved a lot of the code. Be sure to read that one too! This is an experiment I did to play around with Node.js. And web sockets. I’ve put everything in a Gist. In case you want to try it out yourself. I’ll explain how it works in this article. I saved it as. Now, in a regular javascript file &#82...

jeffkreeftmeijer.com

Using Rails test fixtures with CarrierWave

http://jeffkreeftmeijer.com/2014/using-test-fixtures-with-carrierwave

Using Rails test fixtures with CarrierWave. After posting a tweet about using fixtures. A while ago, @stravid. And asked me for some pointers to using fixtures in CarrierWave. The Rails file uploading gem, so I decided to dive in and see if I could get it to work. Heres how I would do it. When using CarrierWave you create an uploader, which subclasses from. Add a field to the database that holds the uploads filename, and link it all together using a call to. Now, how would we test this? Both tests should...

jeffkreeftmeijer.com

Fuubar: the instafailing RSpec progress bar formatter

http://jeffkreeftmeijer.com/2010/fuubar-the-instafailing-rspec-progress-bar-formatter

Fuubar: the instafailing RSpec progress bar formatter. As you might have noticed, I’ve been spending some time trying to get running test suites with RSpec. A bit better and faster over the last weeks. This week I looked into RSpec’s formatters. Option I wrote about last week. Or check out rspec-instafail. Which will output the failure details while continuing to run the rest of your specs. Nice. Which makes RSpec print FFFUUU. After looking around for a bit, I found an article by @nick evans. I decided ...

jeffkreeftmeijer.com

Using git-flow to automate your git branching workflow

http://jeffkreeftmeijer.com/2010/why-arent-you-using-git-flow

Using git-flow to automate your git branching workflow. Vincent Driessens branching model. Is a git branching and release management strategy that helps developers keep track of features, hotfixes and releases in bigger software projects. This workflow has lot of commands to type and remember, though, so theres also the git-flow library of git subcommands. That helps automate some parts of the flow to make working with it a lot easier. You can start using git-flow in your repository by using its. To push...

jeffkreeftmeijer.com

Vim's new hybrid line number mode — Jeff Kreeftmeijer

http://jeffkreeftmeijer.com/2013/vims-new-hybrid-line-number-mode

Vim's new hybrid line number mode. Well over a year ago, I wrote about using relative line numbers in Vim. To speed up movement by displaying line numbers relative to the current line. This makes it easier to find out how many lines up or down you have to jump to get to where you want to be. Because I wanted to switch back to absolute line numbers when I wasnt busy moving around files, I wrote a small vim plugin to do so and released it as vim-numbertoggle. Since Vim 7.4, you can enable both the. Vims hy...

jeffkreeftmeijer.com

Comparing images and creating image diffs

http://jeffkreeftmeijer.com/2011/comparing-images-and-creating-image-diffs

Comparing images and creating image diffs. I’m sure you’ve seen the image view modes. Github released last month. It’s a really nice way to see the differences between two versions of an image. In this article, I’ll try to explain how a simple image diff could be built using pure Ruby and ChunkyPNG. If you need a more basic introduction to working with pixel data in ChunkyPNG, check out last week’s article. Which I did some simple blob detection. A problem with this approach is that it only. Pixels (tota...

jeffkreeftmeijer.com

Archive — Jeff Kreeftmeijer

http://jeffkreeftmeijer.com/archive

Vim's new hybrid line number mode. Instead of having to switch between relative and absolute line numbers, Vim 7.4 comes with a "hybrid" mode to use them both at the same time. On the death of ifs. As a response to an article named The death of ifs , we'll try to refactor a method with a long if statement, without too much overengineering. Preloading dependencies for faster test suite start-up times. Relative line numbers in Vim for super-fast movement. Method chaining and lazy evaluation in Ruby. Is JSO...

jeffkreeftmeijer.com

Relative line numbers in Vim for super-fast movement

http://jeffkreeftmeijer.com/2012/relative-line-numbers-in-vim-for-super-fast-movement

Relative line numbers in Vim for super-fast movement. Is a great setting to help you move around files quickly, but sometimes it can get into your way a bit. Luckily, it’s really easy to add some clever settings, so Vim knows when to toggle between relative and absolute line numbers. Moving around is probably the most useful thing to learn when you’re starting to use Vim. A good starting point would be to get @tednaleid. S movement shortcuts wallpaper. Relative line numbers in Vim. You can set it up with.

jeffkreeftmeijer.com

On the death of ifs — Jeff Kreeftmeijer

http://jeffkreeftmeijer.com/2013/on-the-death-of-ifs

On the death of ifs. I came across The Death of Ifs. Last week, in which @franklinwebber. Explains the steps he took when refactoring this piece of code to try to get rid of the if statement;. Https:/ gist.github.com/5478520/9d509d. Franklin starts out by moving some of the code to a seperate class named. After creating a class for every one of the options in the if statement above, we have. And we can update the. Method we started out with to look like this;. If somebody passes an unknown value, Frankli...