node-promise

码农软件 · 软件分类 · Node.js 扩展 · 2019-04-16 15:57:30

软件介绍

node-promise 在 Node.js 平台上提供了完整的 Promises 的实现。

The node-promise module features a promise implementation with:

  • Chainable promises
  • Promises throw errors if an error handler is not provided
  • CommonJS promise proposal [1] compliant
  • Immutable once fulfilled to reduce possible side-effects
  • Promises can be used securely (as separate resolver/promise pairs in ocap situations)
  • Backwards compatibility where possible (addCallback, addErrback, emitSuccess, and emitError should still behave as expected)

Utility functions, including:

  • when() - Normalization of sync (normal values) and async (promises)
  • all() - Create a promise that accumulate multiple concurrent promises
  • first() - Find the first promise to be fulfilled in a group of promises
  • seq() - Sequentially execute a set of promise returning functions
  • delay() - Returns a promise that is fulfilled after a given amount of time
  • execute() - Executes a function that takes a callback and returns a promise (thank you Benjamin Thomas for providing this)

示例代码:

var Promise = require("promise").Promise;
var promise = new Promise();
asyncOperation(function(){
  Promise.resolve("succesful result");
});
promise -> given to the consumer

本文地址:https://www.codercto.com/soft/d/3716.html

操作系统

操作系统

William Stallings / 陈向群、陈渝 / 机械工业出版社 / 2010.9 / 69.00元

本书不仅全面地讲述了操作系统的基本概念、原理和方法,还清楚地展现了当代操作系统的本质和特点。作者针对近几年操作系统领域的最新变化,对操作系统的设计原理进行深入的阐述,同时将其对操作系统整个领域全面而深入的理解呈现给读者。 本书特色 ·选择Windows Vista、UNIX和Linux三个操作系统作为示例,以帮助读者熟悉当代操作系统的设计原理和实现问题。 ·新增嵌入式操作系统一章......一起来看看 《操作系统》 这本书的介绍吧!

MD5 加密
MD5 加密

MD5 加密工具

SHA 加密
SHA 加密

SHA 加密工具

HEX CMYK 转换工具
HEX CMYK 转换工具

HEX CMYK 互转工具