9 things to consider before deploying sensors
This article is part of a series exploring the role of networking in the Internet of Things. Each networking technology has very different attributes and capabilities. When evaluating protocols and...
View ArticleWho holds your keys?
Put your books, movies, and music on a gleaming shelf. Close the door to keep the dust off. Lock the door, so no one can take it, and hand me the key. I’ll let you have the key when you need it, if you...
View ArticleWhy Ruby blocks exist, part III
Previous posts in this series used Ruby blocks to iterate over the items in a collection. We’re going to wrap up by showing a very different side of blocks – resource allocation and cleanup. Close the...
View ArticleWhat is that upside-down tree doing in my browser?
The secret to getting your web pages to do your bidding with code is to use JavaScript to manipulate the Document Object Model, or DOM. The DOM is an upside-down tree-like structure that the browser...
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Theming in Kivy
Kivy has a wonderful set of built-in widgets that can be extended in numerous ways. They have very useful behaviors, but their look and feel may not integrate well with your App or the platforms you...
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Building ReSTful APIs with Flask in PyCharm
Building APIs can be easier than you think. Say you’ve developed a product or service and would like to provide developer access via a ReSTful API quickly, with minimal effort and overhead. The...
View ArticleI just slipped on a banana peel named “this”
In JavaScript, the special variable this is used to refer an object. But which object this refers too depends on the code you’re executing and how this is used. So, a common problem for those...
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5 reasons to learn D3
Designers and developers making data visualizations on the web are buzzing about d3.js. But why? 1. D3 doesn’t stand for data-design dictator It actually stands for Data-Driven Documents. Which is to...
View ArticleMore than enough Arel
In Just Enough Arel, we explored a bit into how the Arel library transforms our Ruby code into SQL to be executed by the database. To do so, we discovered that Arel abstracts database tables and the...
View ArticleDos and don’ts in JavaScript
With every programming language, there’s a list of do’s and don’ts and JavaScript is no exception. Some of these best practices are there for your protection (like always always always using...
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