RxJS 5.5 allows grabbing lettable operators and piping them like so:

import { ajax } from 'rxjs/observable/dom/ajax'
import { catchError, map, retry } from 'rxjs/operators'

ajax.getJSON('')
.pipe(
    retry(3, 1000),
    map(fetchUserFulfilled),
    catchError(console.error)
)

How would I use the do operator between these mands?

RxJS 5.5 allows grabbing lettable operators and piping them like so:

import { ajax } from 'rxjs/observable/dom/ajax'
import { catchError, map, retry } from 'rxjs/operators'

ajax.getJSON('https://example./api/test')
.pipe(
    retry(3, 1000),
    map(fetchUserFulfilled),
    catchError(console.error)
)

How would I use the do operator between these mands?

• javascript
• rxjs
• rxjs5
• rxjs-lettable-operators

1 Answer 1

The do operator was renamed in RxJS 5.5 to tap because it collided with the JavaScript do keyword.

For more info see: https://github./ReactiveX/rxjs/blob/master/doc/pipeable-operators.md#pipeable-operators