Error message TS2304 occurs when the name 'Rx' cannot be located

While exploring some Angular code, I stumbled upon a snippet that switches between words every few seconds:

words: string[] = ['foo', 'bar', 'baz'];
word = null;

rotateWords() {
  const source = Rx.Observable.interval(1000).take(this.words.length);
  const sub = source.finally(this.rotateWords).subscribe(i => this.word = this.words[i]));  
}

However, when running it on my version of Rx (6.5.5) and Angular (10.0.9), I encounter the error message "Rx is not found". This code appears to be using an outdated format of RxJs. How can I adapt it to the new syntax?

Answer №1

In case you are working with angular and rxjs 4+


import { interval } from 'rxjs'
import { take, finalize} from 'rxjs/operators'

words: string[] = ['apple', 'banana', 'orange'];
word = null;

shuffleWords() {
    const source = interval(1000).pipe(take(this.words.length));
    const sub = source.pipe(finalize(this.shuffleWords.bind(this))).subscribe(i => {
      this.word = this.words[i];
    });
}

View Demo Below

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