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I’ve been programming a lot in languages other than JavaScript, and one thing I’ve noticed is the convenience methods that each language’s core library provides. This seems to be a common theme in JavaScript (String and Date have very few utilities, Array finally got some love with ES5). Purpose of smap.js Boris Smus makes an excellent suggestion for moving the web forward: forward polyfills. That
Jenkins is a CI tool that is often used for running tests and code analysis after every code push. There are a lot of benefits that we as a community are not taking advantage of for our web (CSS, JS, etc) code. In this article I’m going to walk you through setting up automated building and testing for a JavaScript project. NOTE: The steps outlined are generally Linux/Mac centric, I don’t go into d
I took a fair amount of time looking at data structures and algorithms while I was studying for my interviews with Google, and based on informed suggestions from Steve Yegge’s infamous post, I decided to buy The Algorithm Design Manual by Steven S. Skiena. If you don’t care to read my ramblings about this book, here’s a summary: Buy this book if you do ANY serious programming. Note: I have no inte
Last Tuesday I gave a short presentation at the new Boulder Hadoopers Group about testing Hadoop jobs with MRUnit. You will have to know what Hadoop is and how to read Groovy code to fully understand it. I am including the important notes on the slides as well. If your browser doesn’t support flash, check out the slides at slideshare Why use MRUnit? Testing a Hadoop job requires a lot of effort no
A year ago, my good friend Casey Watson suggested that I try using a personal wiki to keep track of my programming knowledge. This turned out to be great advice, so I’ll be sharing how I use one and how to start your own. Why would a personal wiki make you productive? In a phrase: to keep a your web of knowledge accessible from one place. You need a place to put your meeting agenda, important proj
AWK is a very powerful programming language that we can use on the command-line for advanced text processing. I’d like to provide a guide so you can get started using it. I’ll be covering the basics of AWK (named after Alfred Aho, Peter Weinberger, and Brian Kernighan) and provide some useful examples. Tutorial To best introduce awk I’d like to start with a practical example. Most of the applicati
This is now a mature project on GitHub! Please submit comments/issues there. Chances are that if you’ve done any significant Javascript work, you’ve run into a situation where part of the debugging process could be much improved if you just had the function call stack. I’m going to give you some ways of doing this with and without the popular Firebug extension and have some examples of their uses.
Global Regular Expression Print is a staple of every command-line user’s toolbox. As with find, it derives a lot of power from being combined with other tools and can increase your productivity significantly. Following is a simple tutorial that will help you realize the power of this simple and most useful command. If you are on Windows and haven’t already, download and install Cygwin. If you are
I have blogged before that knowledge of command-line tools is essential to take the next step in programming productivity. I think it would be useful to provide simple tutorials for these powerful tools, starting with find. Tutorial If you’re on Windows, I would recommend installing Cygwin to bring the power of a real shell to your OS. Let us start with a simple example and build upon it: find . -
You see it in Google search results and a lot of other sites that have good search functionality. When you perform a search, your words or phrases are highlighted in the search results making it easy for you to find the most relevant content. Today I’m going to show you a simple way to add this to your website or blog so your users can find what they need in style. I think that this kind of thing
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