definition file for "do" operator doesn't match the do(null, fn)

RxJS version: 5.5.6 Code to reproduce:

    new Observable((observer) => {
      observer.next("Yeah !");
      observer.error("error !");
    }).do(null, err => {
      console.log('oops!!!!');
    }).subscribe(something => console.log(something));

Expected behavior: Able to use the do(null, fn);

Actual behavior: I can’t compile my application. I have to use a dummy function to make it work.

    new Observable((observer) => {
      observer.next("Yeah !");
      observer.error("error !");
    }).do(() => {}, err => {
      console.log('oops!!!!');
    }).subscribe(something => console.log(something));

Additional information: RxJS 4 had the doOnError, but RxJS 5 merged that operator with the normal " do", with passing a « null » value has the first arguments, but it doesn’t works.

[benlesh]

I’m unable to reproduce your error in JavaScript: http://jsbin.com/kewohibice/edit?js,console

I suspect the issue you’re hitting is in TypeScript, in that case you can pass undefined and you’ll be fine.

Better

I highly suggest you use: do({ error(err) { console.log('oops' } }) which is more readable and explicit.

[lock[bot]]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.