how to use the range function from the rxjs library in typescript

To use the range function from the rxjs library in TypeScript, you first need to import it from the library.

Here's an example of using the range function to create an observable of numbers from 1 to 5, and then subscribing to it to log each emitted value to the console:

index.ts
import { range } from 'rxjs';

const observable = range(1, 5);

observable.subscribe((value) => {
  console.log(value);
});
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In the above code, we import the range function from the rxjs library, and use it to create a new observable called observable that emits values from 1 to 5.

We then subscribe to this observable and pass in a function to log each emitted value to the console. When we run this code, we should see the following output:

index.ts
1
2
3
4
5
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Note that the range function takes two arguments: the first argument is the starting value of the range, and the second argument is the number of values to emit. In the example above, we start the range at 1 and emit 5 values.