set-promise-interval/dist/set-promise-interval.js

用于定时执行异步任务，调用方式类似原生 setInterval

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const runningTasks = new Set();
const runningHandlers = new Map();
let id = 0;
function delay(ms) {
    return new Promise((resolve) => setTimeout(resolve, ms));
}
async function run(id, ...[handler, interval = 0]) {
    while (runningTasks.has(id)) {
        const startTime = new Date().getTime();
        runningHandlers.set(id, handler());
        try {
            await runningHandlers.get(id);
        }
        catch (e) {
            throw e;
        }
        finally {
            runningHandlers.delete(id);
        }
        await delay(interval - new Date().getTime() + startTime);
    }
}
async function clearPromiseInterval(intervalId) {
    if (typeof intervalId === 'number' && runningTasks.has(intervalId)) {
        if (runningHandlers.has(intervalId)) {
            await runningHandlers.get(intervalId);
        }
        runningTasks.delete(intervalId);
    }
}
exports.clearPromiseInterval = clearPromiseInterval;
function setPromiseInterval(handler, interval) {
    id += 1;
    runningTasks.add(id);
    run(id, handler, interval);
    return id;
}
exports.default = setPromiseInterval;