Helper type to extract valid keys from container instance #3
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Given a container instance, I want to have interfaces that require a valid type from the container.
I could create MyServices type of valid keys, pass it to the container and then require a keyof MyServices.. but it's easier to allow the container to build the types and extract it from it:
```
interface MyServices {
foo: number;
bar: string;
}
type ValidServices = keyof MyServices;
interface Plugin {
key: ValidServices;
}
const container = new Container<MyServices>({})
```
vs
```
const container = new Container({})
type ValidServices = ContainerKeys<typeof container>;
interface Plugin {
key: ValidServices;
}
```
kburov-sc
reviewed
Sep 2, 2024
| type ReturnTypeOfFactories<T> = T extends { factories: infer R } ? R : never; | ||
|
|
||
| /** | ||
| * Helper type for extracting valid keys from a container instance |
There was a problem hiding this comment.
Could you add a usage example here, please
AaA07as
approved these changes
Dec 5, 2024
AaA07as
approved these changes
Dec 5, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Given a container instance, I want to have interfaces that require a valid type from the container.
I could create MyServices type of valid keys, pass it to the container and then require a keyof MyServices.. but it's easier to allow the container to build the types and extract it from it:
vs
Similar to other helpers such as:
https://react-typescript-cheatsheet.netlify.app/docs/react-types/componentprops/#infer-component-props-type