We can create charts quickly when working with D3.js and standard DOM elements, but that comes with a key limitation: the number of nodes we can render is fairly small. Have you ever tried to render a scatterplot with 1000+ circles in SVG? If you have, then you’ve probably seen your browser crumble under the […]

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Back in May, we announced our updated lineup of classes. I want to take a moment to highlight some of our new additions we’re very excited about as well as some returning favorites. In this installment, we’ll look at the classes we’re offering in August. In a future post, we’ll take a look at what […]

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For many developers, writing tests is a hassle that would be best put off till tomorrow. For one, nothing can compete with the direct impact of writing great application logic. No user ever shared feedback like, “The UI was really pleasant and the functional tests were well-organized and readable.” There’s not much I can say […]

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The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. LED Matrix signs are everywhere: roadways (even cars themselves!), store awnings, offices, the grocery store deli, airports, train stations, taxi stands, libraries, alarm clocks, and so on. The use cases are so broad because the technology […]

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Back in January, we announced the receipt of a Prototype Fund grant from Knight Foundation to explore the question: how does one design data visualization for mobile devices? Why are we asking this question? Data Visualization is common in everyday communication online and in print media. As consumers shift to mobile devices for their daily […]

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Previously: On-Board: Intel Galileo Programming with JavaScript and Node.js, and JavaScript: Verifying Analog Write on Intel Galileo At Bocoup, we’re commited to exploring JavaScript hardware programming; as a result of those efforts we’re excited to share a breakthrough today: This is especially exciting as it marks the first time ever that a JavaScript program was […]

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The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. A fairly common security mechanism, the laser intrusion detection system (or laser trip wire), is actually the composition of two devices: Laser Photoresistor, or photocell The laser emits a beam of light directly at the photocell; […]

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Previously: On-Board: Intel Galileo Programming with JavaScript and Node.js When working with emerging platforms, it’s common to find yourself in a position where the platform itself requires some form of testing or validation. Often, it’s not clear how to execute these sort of validations. Thankfully, when the platform’s hardware and software is completely open, the […]

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For the CSS overflow property, should auto or hidden be the default instead of visible? If you write a lot of CSS, there is a good chance your immediate response would be “no way!” But hear me out! There are several awesome benefits to one of these being the default, and in my opinion, many […]

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Bocoup recently hosted OpenVisConf and we wanted to think of a fun and useful way to present the proceedings. We created a visualization that uses the slide transitions in speaker videos to produce a visual overview of each video. You can see the result here. You can click on the colored rectangles to expand them […]

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