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The latest version of the book is P1.0, released 8 months ago. If you've bought a PDF of the book and would like to update it to this version (for free), visit your home page.

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  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: P1.0 (26-Oct-17)
#82190
PDF page: XIII
Rx.Observable.of(1,2,3).subscribe(value => { console.log(value); }); should be Observable.of as we are only selectively importing Observable an...more...
  • Reported in: P1.0 (26-Mar-18)
#82943
Paper page: xv
Footnote number 9 on page xv of the Preface refers to URL of the previous edition. It should instead refer to the URL of the current edition.--Brian...more...
  • Reported in: P1.0 (17-Jun-18)
#83275
PDF page: 9
Page 9 begins with a usage example of the MultipleIterator class defined on the preceding page. However, the usage example states: const consumer =...more...
  • Reported in: P1.0 (27-Mar-18)
#82946
PDF page: 11
Paper page: 11
says this: Here’s how we create a basic Observer from scratch: const subscriber = Subscriber.create( value => console.log(`Next: ${value}`), error...more...
  • Reported in: P1.0 (18-Jun-18)
#83276
PDF page: 19
The marble diagram for map() shows the derived observable timeline ending with an X, signifying an error. This is puzzling given that the source ob...more...
  • Reported in: P1.0 (18-Jun-18)
#83278
PDF page: 19
The code comparison between "JS Arrays" and "Observables" accompanying the marble diagram for map() makes use of variable names "upper" and "name" alt...more...
  • Reported in: P1.0 (27-Mar-18)
#82945
PDF page: 62
The usage of distinctUntilChanged doesn't seem to work as described with a single argument to its callback. I found an example where two arguments are...more...