Archives for February 2016

February 2016 (4)
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Thinking functionally in JavaScript – a fun interlude

I’ve been talking about functional JavaScript for a few posts, but, to be honest, it’s nice to put the theory aside and just practice thinking and writing functionally. With that in mind, let see what we can do about fixing some “copy-n-paste” code. I bought a theme for this site a month or so back – you’re looking at it. As part of the theme, you get some HTML showing what various types of pages look like, the CSS to render it all, and some JavaScript. Usually the HTML/CSS is fine, but then I take...

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Thinking functionally in JavaScript (part three)

In continuing this series of posts about functional JavaScript ( one , two ), I whimsically wondered if we could apply the SOLID principles of object-oriented programming . We took a look at S last time (the Single Responsibility Principle), and were fairly successful. The principle I introduced there was not only that the functions we write should do one thing and do it well. If we can embrace global immutability, so much the better (in other words, the function should not have side effects ). Small...

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Web development is not as much fun as it’s cracked up to be

Today so far has been a comedy of errors with some web programming I wanted to do. A confederacy of dunce issues, one after the other. URL Shortener It started with some work I’d been doing yesterday with the URL shortener code I use for my jmbk.nl links. The web hosting I have for the domain on GoDaddy is a couple of months from its renewal date, but, to be honest, what I’m paying for it (about $7 a month) is not worth it. I’ll move it to Azure, I thought to myself. Let’s see what amount of work...

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Thinking functionally in JavaScript (part two)

Last time I took a quick look at why JavaScript can be used in a functional manner, primarily though the use of higher-order functions. Another way of putting this is that functions are objects in JavaScript, in the sense that they can be passed to and returned from other functions. And once you say “objects” as a programmer, you start thinking about things like composition, state, inheritance, and so on. Enter the well-known SOLID principles for object-oriented programming, but how are they applicable...

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