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xjlin0.github.io

Using array for recording baby schedule

http://xjlin0.github.io/tech/2014/12/03/using-array-for-recording-baby-schedule

Using array for recording baby schedule. Find baby sitting gaps by Ruby. How does the Incredibles arrange baby sitting? This demanding baby needs. Care 24 hours a day, and their life would go crazy if there's a gap. Let's take a look at the baby's schedule and find the gap:. That's ridiculous", you may think, "why would we need a program to find this? It's fine to add/subtract among arrays, but it's NOT OK to add/subtract among hashes! Let's create an empty Hash for the family first! Now let's record eve...

xjlin0.github.io

Anger Management

http://xjlin0.github.io/cultural/2015/01/21/anger-management

What happened to me when upset. Blog comments powered by Disqus. Laquo; Cache the results to skip repetitive calculations. The journey of static page generator ». Bay area housing price heat map. US census on zip code boundaries. ClearCare log parser to find service gaps. ClearCare log parser to find overlapped or short shifts. Perl-CGI] CRISPR/Cas9 gRNA finder. Joomla] church website including Bible reader. The theme of my blog was modified from the program theme.

xjlin0.github.io

Busy web developers

http://xjlin0.github.io/cultural/2014/12/14/busy-web-developers

Wider field than ever. Building web sites was very simple and straightforward decades ago. Add up several tags around the text plus a few links to pictures or music and it's done. Some dynamic always can be achieved by old school JS codes or with CGI and pretty much that's it. Oh sweet old days. Blog comments powered by Disqus. Laquo; My learning showed a distinct thinking style. Using Ruby for car auto piloting ». Bay area housing price heat map. US census on zip code boundaries.

xjlin0.github.io

Choosing between devise and clearance

http://xjlin0.github.io/tech/2015/03/20/choosing-between-devise-and-clearance

Choosing between devise and clearance. These gems can really help your rails app on user control. Rails generate devise MODEL. Create migration for you). Bkg ( deliver later/ActionMailer. Yes (by Rack session). Here is a great tutorial of Devise can be found on Ruby girls. Or you can use Rais Composer to install Devise on a new Rails project. Rails new myapp -m https:/ raw.github.com/RailsApps/rails-composer/master/composer.rb. Alternatively, you can install ActiveAdmin gem. Rails new clearance -B echo.

xjlin0.github.io

My learning showed a distinct thinking style

http://xjlin0.github.io/cultural/2014/12/06/my-learning-showed-a-distinct-thinking-style

My learning showed a distinct thinking style. I am not who I was. Before the first phase of the DBC "phase 0", we were requested to read something about mindset and thinking style. Our reflection and conclusion, if any, was required to submitted before the start of the curriculum. Whatever," I thought, "it's really wired, I'm here to learn development, not Psychology". Blog comments powered by Disqus. Laquo; Using array for recording baby schedule. Busy web developers ». Bay area housing price heat map.

xjlin0.github.io

Using Ruby for car auto piloting

http://xjlin0.github.io/tech/2014/12/14/using-ruby-for-car-auto-piloting

Using Ruby for car auto piloting. Find passing routes by Enumerable methods. Nobody is happy in the traffic. It'd be great if cars can drive by themselves. Nowadays some new cars come with "traffic jam assistance" for auto-turning. But it's not enough for auto-driving. Finding path with obstacle avoidance. Is critical in addition to GPS routing. Let's take a look at the road and find the route for steering behaviour of an autonomous car. You might think "What's that. Now with the power of the. Cool, we j...

xjlin0.github.io

Great female engineers

http://xjlin0.github.io/cultural/2015/07/31/great-female-engineers

Are you the victim of sexual stereotyping? Varieties stimulate thinkings from more angles, and different thinkings trigger creativities. Historically male is dominant in the engineer field due to many reasons. But sometimes people misread such trend as female is not a good fit in certain fields. I would like to argue the opposite by discussing some examples. Admiral Grace Hopper, the Amazing Grace. As one of the first full-time developers on Harvard Mark computers. The outstanding computer scientist, als...

xjlin0.github.io

List all shifts of Incredibles

http://xjlin0.github.io/tech/2014/12/28/list-all-shifts-of-incredibles

List all shifts of Incredibles. The composition and inheritance in Ruby class. In the previous blog I showed how to use undefined methods in class by attr accessor and method missing. Let's talk more about how to use undefined methods by inheritance and composition since it's useful for the object-oriented programming. Here we define super powers of the Incredibles. Shuuooo . you just moved! The invisible wall is now protecting you! You can list many super powers on and on. Shuuooo . you just moved!