July 15th, 2013 0 comments

I had a project that was almost entirely JavaScript come up with a decent timeline on it. Not to be one to have a completely uninformed opinion I decided that this would be an appropriate time to actually use CoffeScript and find out whether it was worth it.

By way of background I have been a Ruby and JavaScript developer for several years. I'm openly biased against indentation delimited languages, simply because I find them annoying to work in and this has so far caused me to avoid using CoffeeScript for much of anything beyond hello world.

The following are the highlights of just over two weeks of intense development, all of the JavaScript was written in CoffeeScript. ... (continued)

June 6th, 2012 0 comments

An interesting problem came up today.

One of our models is serializing an arbitrary hash.

This was all well and good until we started looking at runtimes in our controller actions. 34% of runtime was spent parsing YAML.

Experimenting a little, I ran the following test which revealed that JSON.load is two orders of magnitude faster than YAML.load at simple hashes.

This was a shocking result to me, but as I thought about it I realized that YAML exists to store more than just simple hashes, whereas that is all that JSON can do.

It would seem that switching data over from the default YAML to JSON is quite simple.

The problem comes when you have existing data YAML encoded.

I fixed this with a rake task which creates a fake model to avoid other model configurations, validations and automagics and simple parses the YAML and encodes it to JSON. It may not be necessary to create the fake model in the general case, however in my situation where my model is very complicated and doing many different things it was easier to simply eliminate everything.

May 21st, 2012 0 comments

The Annular Solar Eclipse passed straight through St. George today. Interestingly, i got some pictures using my Galaxy Nexus by putting a black paper filter in front of it.


... (continued)
April 12th, 2012 0 comments

I'm going to be presenting this year at the Utah Open Source Conference.

I'll be presenting on two subjects. An introduction to Ruby and an introduction to Capybara.

August 7th, 2011 0 comments

I've been installing Ubuntu 11.04 at last. Unfortunately, rvm choked up. It claimed to install properly, but choked when trying to do the simplest gem commands.

ERROR:  Loading command: install (LoadError)
    no such file to load -- zlib
ERROR:  While executing gem ... (NameError)
    uninitialized constant Gem::Commands::InstallCommand

The solution was hidden in some comments in stack overflow.

rvm pkg install zlib
rvm uninstall 1.8.7 #this can be 1.9.2 or ree, whatever
rvm install 1.8.7 --with-zlib-dir=$rvm_path/usr

Fixed.