X Tutup
Skip to content

Fix typo plumming -> plumbing #29

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Froussios merged 1 commit into from
Mar 8, 2017
Merged

Fix typo plumming -> plumbing #29

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion Part 1 - Getting Started/2. Key types.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ When developing Rx code, you'll see a lot of `Observable`, but not so much of `O

## Implementing Observable and Observer

You could manually implement `Observer` or extend `Observable`. In reality that will usually be unnecessary, since Rx already provides all the building blocks you need. It is also dangerous, as interaction between parts of Rx includes conventions and internal plumming that are not obvious to a beginner. It is both simpler and safer to use the many tools that Rx gives you for generating the functionality that you need.
You could manually implement `Observer` or extend `Observable`. In reality that will usually be unnecessary, since Rx already provides all the building blocks you need. It is also dangerous, as interaction between parts of Rx includes conventions and internal plumbing that are not obvious to a beginner. It is both simpler and safer to use the many tools that Rx gives you for generating the functionality that you need.

To subscribe to an observable, it is not necessary to provide instances of `Observer` at all. There are overloads to `subscribe` that simply take the functions to be executed for `onNext`, `onError` and `onSubscribe`, hiding away the instantiation of the corresponding `Observer`. It is not even necessary to provide each of those functions. You can provide a subset of them, i.e. just `onNext` or just `onNext` and `onError`.

Expand Down
X Tutup