Questions tagged [newable]
6 questions
9
votes
3 answers
How to specify any newable type in TypeScript?
I tried with this but it doesn't work. Foo is just a test of what works. Bar is the real try, it should receive any newable type but subclasses of Object isn't valid for that purpose.
class A {
}
class B {
public Foo(newable: typeof A):void {
…
Áxel Costas Pena
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8
votes
1 answer
Dependency Injection, injecting an "injectable" object (service) into a newable (entity)
When writing code we should be able to identify two big group of objects:
Injectables
Newables
http://www.loosecouplings.com/2011/01/how-to-write-testable-code-overview.html
http://misko.hevery.com/2008/09/30/to-new-or-not-to-new/
Injectable…
Jupaol
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7
votes
3 answers
Dependency injection when the class created also needs runtime values?
Assume you divide up your systems in Value objects and Services objects (as suggested in "Growing Object-Oriented Software, Guided by Tests". Misko Hevery calls these "newables" and "injectables".
What happens when one of your value objects…
WW.
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4
votes
1 answer
ViewHelper newable/injectable dilemma
I'm trying to design an application following Misko Heverys insights. It's an interesting experiment and a challenge. Currently I'm struggling with my ViewHelper implementation.
The ViewHelper decouples the model from the view. In my implementation…
koen
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0
votes
0 answers
Typescript generic callable constructor type
Does typescript provide any means to get a callable constructor properly typed in generic way?
The below code works but has a few issues.
Seems you just can't modify the constructor return type through a declaring class or interface.
I tried to play…
Lode Michels
- 69
- 5
0
votes
1 answer
Is it possible to pass a type to an Angular component that can 'newed'?
I am developing a generic dropdown component. If the user enters a value not in the list, I want to return a new object of the same type in the itemSelected event. I need to preserve the methods as well as the properties - so just creating a generic…
Jon Vote
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