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pro-promise

v0.1.0

Published

Promise Enhancement

Downloads

1

Readme

pro-promise

ProPromise 是一个 JavaScript/TypeScript 库,它通过添加超时功能并提供将回调风格的函数转换为 Promise 的实用程序,扩展了原生 Promise 的功能。

NPM version NPM downloads

安装

你可以通过 npm 安装 ProPromise:

npm install pro-promise

使用

超时功能

ProPromise 允许你为 Promise 设置超时,确保它不会无限期等待。你可以像这样使用它:

import Promise from 'pro-promise';

const myPromise = new Promise((resolve, reject) => {
  // 模拟异步操作
  setTimeout(() => {
    resolve('Promise 成功解决');
  }, 2000);
});

// 设置 1500 毫秒的超时
myPromise.timeout(1500)
  .then((result) => {
    console.log(result);
  })
  .catch((error) => {
    console.error(error);
  });

将回调风格函数转换为 Promise

ProPromise 提供了一个静态方法 promisify,用于将回调风格的函数转换为 Promise。以下是一个示例:

import Promise from 'pro-promise';

function exampleCallbackFunction(callback) {
  setTimeout(() => {
    callback(null, '回调返回的数据');
  }, 1000);
}

const promisifiedFunction = Promise.promisify(exampleCallbackFunction);

promisifiedFunction()
  .then((result) => {
    console.log(result);
  })
  .catch((error) => {
    console.error(error);
  });

API

ProPromise

ProPromise 类扩展了原生的 Promise 类。它接受一个执行函数并提供了额外的方法:

  • timeout(ms: number): ProPromise<T>:为 Promise 添加超时。如果 Promise 在指定时间内不解决或拒绝,它将使用超时错误拒绝。

  • static promisify<T>(fn: (...args: any[]) => void): (...args: any[]) => ProPromise<T>:用于将回调风格函数转换为 Promise 的静态方法。

许可证

该项目基于 MIT 许可证进行许可。有关详细信息,请参阅 LICENSE 文件。

贡献

如果您想为 ProPromise 做出贡献,请打开一个问题或提交一个拉取请求。我们欢迎您的意见和贡献。