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Results tagged with dependency-injection
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user 100972
Dependency Injection, is a design pattern where dependencies (instances of objects, properties) of a component are set through the constructor(s), methods or fields (properties). It is a special form of the more general dependency inversion.
3
votes
3
answers
172
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How do things other than services fit into the Dependency Injection pattern?
Wikipedia explains:
A dependency is an object that can be used (a service). An injection
is the passing of a dependency to a dependent object (a client) that
would use it.
But studying Angul …
- 3,823
0
votes
1
answer
72
views
Can a DI object be both a client and a service simultaneously?
In my reasearch of Dependendcy Injection so far I haven't seen an example object being treated as both a client and a service (meaning a service [value, factory, etc] which has its own dependencies).
…
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0
votes
1
answer
149
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Does this structure satisfy the terms of the Inversion of Control principle?
I'm trying, as a test, to create Dependency Injection from scratch in JavaScript. Consider the following code structure, which outputs an Alert:
Does it satisfy the terms of the Dependency Inversion …
- 3,823
2
votes
2
answers
1k
views
What should a Dependency Injector look like in JavaScript?
I'm studying Dependency Injection in JavaScript. I've learned what I need to accomplish, according to Wikipedia,
The client delegates to external code (the injector) the
responsibility of providing i …
- 3,823
0
votes
4
answers
6k
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How is an interface used in Dependency Injection?
I'm working on a simple DI library, and on the subject of using services through interfaces, I can't find the usefulness. Perhaps it's because I dont fully or properly understand how an interface shou …
- 3,823