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polling-utils

v1.1.0

Published

## 简介 这是一个简单 JavaScript 轮询工具,适用于定期执行某个函数,比如拉取数据、监测状态等。 ## 安装

Readme

Polling Utility

简介

这是一个简单 JavaScript 轮询工具,适用于定期执行某个函数,比如拉取数据、监测状态等。

安装

通过 npm 安装:

npm install polling-utils

使用

import { usePolling } from "polling-utils";

// 定义轮询函数
const fetchData = async (id) => {
  console.log("正在获取 ID:", id, "的数据...");
  // 模拟 API 请求
};

const { startPolling, stopPolling } = usePolling(fetchData, 3000, true);

// 启动轮询(每 3 秒执行一次)
startPolling(123);

// 5 秒后停止轮询
setTimeout(() => stopPolling(), 5000);

📚 API 说明

usePolling(pollFn, interval, immediate)

参数 类型 默认值 说明

pollFn function - 需要执行的轮询函数

interval number 5000 轮询的时间间隔(单位:毫秒)

immediate boolean false 是否在启动时立即执行一次

返回值

usePolling 返回一个对象,包含以下两个方法:

1️⃣ startPolling(id)

作用:启动轮询,并将 id 传递给 pollFn 。 示例: startPolling(42); // 立即执行一次 fetchData(42),然后每 5 秒执行一次

2️⃣ stopPolling()

作用:手动停止轮询。 示例: stopPolling(); // 停止轮询

🎯 应用场景

✅ 定期拉取数据(如定时请求 API) ✅ 检测任务状态(如轮询某个异步任务的完成情况) ✅ 自动刷新页面数据(如聊天消息、股票行情等)