Angular RXJS source code analysis: Implementation of range(0, 10)

The source code:

const source$ = range(0.10);
Copy the code

Range (0,10) returns a new Observable, but does not execute immediately until a subscribe call is reached:

The code highlighted below executes after Observable.subscribe:

Register to the _subscribe Observable:

For more of Jerry’s original articles, please follow the public account “Wang Zixi “: