import { SchedulerLike, ValueFromArray } from '../types';
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import { Observable } from '../Observable';
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import { popScheduler } from '../util/args';
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import { from } from './from';
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// Devs are more likely to pass null or undefined than they are a scheduler
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// without accompanying values. To make things easier for (naughty) devs who
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// use the `strictNullChecks: false` TypeScript compiler option, these
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// overloads with explicit null and undefined values are included.
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export function of(value: null): Observable<null>;
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export function of(value: undefined): Observable<undefined>;
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/** @deprecated The `scheduler` parameter will be removed in v8. Use `scheduled`. Details: https://rxjs.dev/deprecations/scheduler-argument */
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export function of(scheduler: SchedulerLike): Observable<never>;
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/** @deprecated The `scheduler` parameter will be removed in v8. Use `scheduled`. Details: https://rxjs.dev/deprecations/scheduler-argument */
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export function of<A extends readonly unknown[]>(...valuesAndScheduler: [...A, SchedulerLike]): Observable<ValueFromArray<A>>;
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export function of(): Observable<never>;
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/** @deprecated Do not specify explicit type parameters. Signatures with type parameters that cannot be inferred will be removed in v8. */
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export function of<T>(): Observable<T>;
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export function of<T>(value: T): Observable<T>;
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export function of<A extends readonly unknown[]>(...values: A): Observable<ValueFromArray<A>>;
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/**
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* Converts the arguments to an observable sequence.
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*
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* <span class="informal">Each argument becomes a `next` notification.</span>
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*
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* 
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*
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* Unlike {@link from}, it does not do any flattening and emits each argument in whole
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* as a separate `next` notification.
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*
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* ## Examples
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*
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* Emit the values `10, 20, 30`
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*
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* ```ts
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* import { of } from 'rxjs';
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*
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* of(10, 20, 30)
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* .subscribe({
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* next: value => console.log('next:', value),
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* error: err => console.log('error:', err),
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* complete: () => console.log('the end'),
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* });
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*
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* // Outputs
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* // next: 10
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* // next: 20
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* // next: 30
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* // the end
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* ```
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*
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* Emit the array `[1, 2, 3]`
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*
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* ```ts
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* import { of } from 'rxjs';
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*
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* of([1, 2, 3])
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* .subscribe({
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* next: value => console.log('next:', value),
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* error: err => console.log('error:', err),
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* complete: () => console.log('the end'),
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* });
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*
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* // Outputs
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* // next: [1, 2, 3]
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* // the end
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* ```
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*
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* @see {@link from}
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* @see {@link range}
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*
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* @param {...T} values A comma separated list of arguments you want to be emitted
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* @return {Observable} An Observable that emits the arguments
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* described above and then completes.
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*/
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export function of<T>(...args: Array<T | SchedulerLike>): Observable<T> {
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const scheduler = popScheduler(args);
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return from(args as T[], scheduler);
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}
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