Update: This proposal now has two open bugs for implementation, on V8 and SpiderMonkey. https://code.google.com/p/v8/issues/detail?id=3915 https://bugzilla.mozilla.org/show_bug.cgi?id=1135708 In this article, I’ll explore the process of adding syntax to a programming language by going through the process of designing a new JavaScript exponentiation operator, which I’ve submitted to TC39 for consideration in ES7. In many programming languages, […]

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I’m honored to have been named lead maintainer of JSHint. Following in Anton‘s footsteps, I’m excited to carry on his vision for the project and see it forward. In addition to overseeing regular maintenance of the project, my primary goal will be to prepare JSHint for ES6. Stewarding this work will be an exciting challenge, […]

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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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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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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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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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The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. Do not attempt this tutorial with a voltage source greater than 24V A Relay is a type of actuator, or electrically controlled switch, that allows controlling one circuit with another circuit. The controller circuit is completely […]

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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 tilt sensor is a component that senses its own change in inclination. Similar to a button, tilt sensors are activated through a physical interaction mechanism; in the tilt sensor case, this is the act of […]

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