Posted on January 13, 2015
Committing to git as a different user
I have two accounts on git, one for work, and one for personal use. On my work laptop, I push all my commits to origin on my work account. But as part of learning Scala for work, I… Read More
Posted on January 13, 2015
Scalatra tutorial part 4: Adding scalastyle
Scalastyle provides functionality to enforce style rules and best practices in Scala, similar to jslint, FXCop, or PMD. Setting it up is straightforward. You can follow along here: https://github.com/jieyangh/scalatra-sample-API with git hash 5d40618622e79835e870fac1533a90bbf9694dc3 First, we will modify plugins.sbt… Read More
Posted on January 8, 2015
Scalatra tutorial part 3
Part 1 and Part 2 are here. You can follow along on github at https://github.com/jieyangh/scalatra-sample-API. The git hash for part 3 is 92828543922dafb66b00bff03e9f115647747427 (simply type git checkout 92828543922dafb66b00bff03e9f115647747427 from the command line in your local repository). There’s a… Read More
Posted on January 7, 2015
Interview practice: Racing horses
This one is a puzzle question. I’m personally not the biggest fan of these types of problems and would never ask something like this in an interview. That being said, they are kind of fun, and the following… Read More
Posted on July 21, 2014
Scalatra Tutorial (Part 2): Logging, debugging, and tests
Part 1 of this tutorial is here You can follow along by getting the code from github here: https://github.com/jieyangh/scalatra-sample-API The git hash for part 2 is 32190b1ae5eb685f6a06eaae6cd5fa15d5cf23bd Now that we have a barebones implementation of a web API,… Read More
Posted on July 8, 2014
Scalatra tutorial (Part 1): Setting up a barebones “Hello world” REST API
I went through the exercise of setting up a Scalatra web API on my MacOS X for work. There are lots of guides out there, most of which use pre-existing projects on Github as a starting point. The official… Read More
Posted on June 11, 2014
null + null = 0, +new Date, and why loosely typed languages like Javascript are a pain
Javascript is a loosely typed language. This was done to expedite the writing of code and avoiding tedious tasks such as declaring variables and explicitly defining their types. You know, the kind of stuff only suckers would do…. Read More
Posted on June 5, 2014
Scoping of “this” – client side Javascript versus server side NodeJS
Every function in Javascript has a “this” object that behaves differently depending on the execution context. Everytime a function is executed in Javascript, there is an object context associated with it; “this” provides a way to reference that… Read More
Posted on May 27, 2014
When keeping it Agile goes horribly wrong
Disclaimer: I don’t like being Agile. I also don’t like complaining. Too much negativity is a bad thing, and in some cases, it can be even worse than being Agile. I subscribe to the simple philosophy that time… Read More
Posted on February 21, 2014
Deduping an XML document with XSLT (listing only unique elements)
XSLT provides a key() function that retrieves a subset of nodes in an XML document based on a selection criteria specified in an element. In essence, is an index of the XML document, and key() serves as an… Read More