ix/asynciterable/interval.mjs

The Interactive Extensions for JavaScript

import { __asyncGenerator, __await } from "tslib";
import { AsyncIterableX } from './asynciterablex.mjs';
import { sleep } from './_sleep.mjs';
import { throwIfAborted } from '../aborterror.mjs';
class IntervalAsyncIterable extends AsyncIterableX {
    constructor(dueTime) {
        super();
        this._dueTime = dueTime;
    }
    [Symbol.asyncIterator](signal) {
        return __asyncGenerator(this, arguments, function* _a() {
            throwIfAborted(signal);
            let i = 0;
            while (1) {
                yield __await(sleep(this._dueTime, signal));
                yield yield __await(i++);
            }
        });
    }
}
/**
 * Produces a new item in an async-iterable at the given interval cycle time.
 *
 * @param {number} dueTime The due time in milliseconds to spawn a new item.
 * @returns {AsyncIterableX<number>} An async-iterable producing values at the specified interval.
 */
export function interval(dueTime) {
    return new IntervalAsyncIterable(dueTime);
}

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