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brandonsavage.net | ||
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sookocheff.com
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| | | | | Inversion of Control (IoC), also known as Dependency Injection (DI), allows an object to define their dependencies as constructor arguments (strictly speaking, you can set these dependencies as properties, but the examples I will use today are constructor-based). This is the inverse of the object itself controlling the instantiation or location of its dependencies, hence the name Inversion of Control. Let's look at an example from Stackoverflow using a text editor with a spell checking component: | |
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blog.nuculabs.de
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| | | | | The Constructor Injection design pattern is a pattern that helps you declare all the required dependencies of a class in it's constructor. This is useful because it helps you decouple the code, you can specify an interface instead of a concrete type, remember, program to an interface. Also, in the constructor it is easier to guard against null objects. The calling code doesn't have to worry about null exceptions every time it uses a dependency. | |
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solnic.dev
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| | | | | I was wondering what do we, rubyists, think about dependency injection these days as I remember some discussions about it which were mostly lots of post-java-trauma type of criticism. I had this blog post in the back of my head for a long time but knowing that this subject was sort of...explored... | |
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www.urbanautomaton.com
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| | | An in-depth look at Zeitwerk, the new autoloader in Rails 6 | ||
