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JavaScript functions: First-class objects
In JavaScript, functions are first-class objects, meaning that they can be created, manipulated and passed around in the same manner as other objects/variables in JavaScript. For example, a function...
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Open Cygwin Bash Shell Here
If you’re like me, you love shortcuts and other tools that improve productivity. One of the other things I’ve gained a liking for is the Bash shell, after spending time in a Unix environment. Since I...
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Determine your visitor’s location based on IP address
If you’re running a website that provides a service, it’s likely that it would be beneficial to know a user’s location (or have a rough idea) so that the content could be tailored to their specific...
View ArticleTriggering links from JavaScript using jQuery
Sometimes, you may want to trigger a link (that is, an anchor element) directly from JavaScript. That is, you may want to simulate the user clicking on the link programmatically. If you’re using...
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Folding changesets with the Mercurial Queues extension
Mercurial is my distributed revision control system of choice, a trait I picked up at my previous job. I haven’t had the opportunity to deal with Git for any period of time, so I can’t comment on the...
View ArticleThe Flyweight Pattern: (Mis|ab)used at times.
In my brief career in software development thus far, I have seen a lot of “WTF” code, that is, code that deserves to be posted to The Daily WTF. Some of this code was admittedly developed by myself and...
View ArticleJava’s Pattern class and regular expressions
One of the easiest things to get tripped up on is the syntax for creating regular expressions (regex) in Java using the Pattern class. The tl;dr version of how to do things is that you must use...
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Accessing the host file system from a Docker container on OS X or Windows
Mounting (or sharing) a directory from the Docker daemon host into a container is simple enough. Example: $ docker run -v [host directory path]:[container directory path] -it [image name] However, on...
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Remote Python debugging using PyDev/LiClipse for OpenStack Swift
We all know what debugging is – stepping through running code, line by line, inspecting variables and trying to figure out what’s wrong with your program while simultaneously tearing your hair out....
View ArticleConverting an IPython Notebook to PDF
If you have an IPython Notebook (*.ipynb file), you may want to convert to PDF for distribution. If you read the documentation for ipython nbconvert, it seems fairly straightforward: $ ipython...
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