&.?Ruby devs are probably all too familiar with seeing this error:
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1 |
NoMethodError (undefined method `foo' for nil:NilClass) |
Most of the time, it’s probably due to a typo, but every now and then we end up having to do something like:
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1 2 |
defined?(bar) && bar.foo # returns nil if bar is nil |
If you’re on Rails, or are using ActiveSupport, you can use present? or try():
If you are into object-oriented programming, you most likely have heard about composition over inheritance. The concept itself is simple: Whenever possible, prefer to compose objects rather than introducing inheritance.
Continue reading “Composition over Inheritance, with JavaScript examples”FileMaker supports bidirectional communication between a web viewer and data or scripts. So, you may find yourself doing more development using plenty of web code and JavaScript integrations.
If you’re having difficulty getting your HTML, CSS, or JavaScript to render in a FileMaker web viewer, there’s a great way to help inspect and fix it. You just need to know the hidden option to enable WebKit debugging in FileMaker web viewers.
Continue reading “How to enable WebKit and JavaScript debugging in FileMaker Web Viewers”
Over years of reviewing Ruby code, the same things tend to come up over and over. In this post, I’d like to address some of the most common code smells I find when reviewing OOP code (and Ruby code in particular).
Continue reading “Common Code Smells in OOP”I have ulte
rior motives.
Continue reading “Beezwax Web Team Code Review: a blog post with ulterior motives”
Over time, without structure, things fall apart. So give them structure, a few conventions, and start to make them more maintainable. Let me say more, at least in the context of JavaScript in your applications (or did you think I was talking about gardens or buildings or such? lol.)
Continue reading “Modularizing The JavaScript You Already Have”
Server-side Swift is making waves in the web and services worlds, and developers from iOS, web and other coding backgrounds are increasingly joining the server-side Swift community. There’s just one problem (a good one): How do you choose which open-source Swift framework to use?
Continue reading “Which Server-Side Swift Framework Is Best For Your Project?”
Ruby-ish, rubbish… Get it? Anyways, not like Ruby-ish means bad! Quite the opposite!
It’s the day after Xmas and because Ruby is awesome and delivered 2.6.0, we’ll get to play with some of our new Xmas gifts: Kernel#then, Proc#>> and Proc#<<.
ePub is a digital book format which is pretty common nowadays. It’s supported natively by Windows and Android and it’s one of the official formats for digital books in the Apple Books store.
In this post I’ll talk about generating ePub files with Ruby and how to painlessly integrate this feature to your application. I’ll be using a Ruby gem I created called ePubber, which I created to help manage ePub content.
Continue reading “ePubber – generating ePub files with Ruby”
