how to use the distinct function from the rxjs library in javascript

To use the distinct operator from the rxjs library in JavaScript, you first need to create an Observable that emits data. Then, you can use the distinct operator to filter out any duplicate values emitted by the Observable.

Here's an example:

index.tsx
import { from } from 'rxjs';
import { distinct } from 'rxjs/operators';

// create an Observable that emits some duplicate values
const source = from([1, 2, 3, 1, 2, 4]);

// use the `distinct` operator to filter out duplicates
const example = source.pipe(distinct());

// subscribe to the `example` Observable to see the result
example.subscribe(console.log);
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This will output: 1, 2, 3, 4.

In this example, we imported the from function from the rxjs library to create an Observable that emits the array [1, 2, 3, 1, 2, 4], which contains some duplicate numbers.

We then used the distinct operator on this Observable, which returns a new Observable that filters out any duplicates. Finally, we subscribed to the example Observable and logged the emitted values to the console.

This is just a simple example, but the distinct operator can be used in more complex scenarios to filter out duplicates based on a specific key or property, among other things.