Tag Archives: JavaScript

Interactivity in HTML5 Canvas Visualizations

In the last canvas visualization post I discussed the canvas API’s transform functionality and how it greatly simplifies drawing complex visualizations.  In this post, I’ll talk a little about making canvas visualizations interactive and about problems you might encounter when … Continue reading

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Taming 2D Transforms in HTML5 Canvas

This is the second post in a series on creating custom interactive visualizations in canvas.  The first post is here. The canvas API contains five methods (rotate, scale, translate, transform, and setTransform) used to transform the drawing context. We typically … Continue reading

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Node.js, Part III: Full Stack Application

In my previous posts, I introduced you to Node.js and walked through a bit of its codebase. Now I want to get a simple, but non-trivial Node.js application running. My biggest problem with Node.js so far has been the lack … Continue reading

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Node.js, Part II: Spelunking in the Code

In my last post, I gave a quick overview of Node.js and showed you how to install and smoke test it. Now let’s dive deeper and learn what it provides and how it works.

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Node.js Overview

I was a Java guy for 10 years and I’ve been a Rubyist for the last 5 years. Over the years, I’ve tried to develop expertise in a particular area of technology that will both pay the bills and make … Continue reading

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Visualizing Skillsets in HTML5 Canvas: Part 1

As Courtney chronicled in the d.build journal, Carbon Five recently engaged in a group exercise to create a physical diagram of our skills and interests.  The activity was entertaining and produced a rather attractive artifact on the wall, but we … Continue reading

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Ew… you got CSS in my Javascript

The other weekend I test drove a little Javascript library to output CSS style rules from within Javascript. I took the most obvious Javascript-literal approach to get the most out of Javascript support in editors. I called it Csster (“sister”), … Continue reading

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A few experiments with HTML 5 applications

I’ve had a long-standing interest in taking client-side programming beyond display logic and input validation. The new HTML 5 technologies are making full-scale application development in the browser increasingly practical. Unfortunately, the needs of Carbon Five’s clients generally exceed the … Continue reading

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Unit testing JavaScript with Blue Ridge

My current rails project is using Blue Ridge and the tool set it bundles together (Rhino, env.js, Screw.Unit, and Smoke) to write test driven JavaScript. The ability to write tests of my JavaScript, in JavaScript, as efficiently as I can … Continue reading

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