ix/iterable/operators/repeat.mjs

The Interactive Extensions for JavaScript

import { IterableX } from '../iterablex.mjs';
/** @ignore */
export class RepeatIterable extends IterableX {
    constructor(source, count) {
        super();
        this._source = source;
        this._count = count;
    }
    *[Symbol.iterator]() {
        if (this._count === -1) {
            while (1) {
                for (const item of this._source) {
                    yield item;
                }
            }
        }
        else {
            for (let i = 0; i < this._count; i++) {
                for (const item of this._source) {
                    yield item;
                }
            }
        }
    }
}
/**
 * Repeats the async-enumerable sequence a specified number of times.
 *
 * @template TSource The type of the elements in the source sequence.
 * @param {number} [count=-1] Number of times to repeat the sequence. If not specified, the sequence repeats indefinitely.
 * @returns {MonoTypeOperatorFunction<TSource>} The iterable sequence producing the elements of the given sequence repeatedly.
 */
export function repeat(count = -1) {
    return function repeatOperatorFunction(source) {
        return new RepeatIterable(source, count);
    };
}

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