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cttic-promise-helper

v0.0.2

Published

Cttic PromiseHelper

Downloads

2

Readme

PromiseHelper

安装

npm install cttic-promise-helper

引用

import {
  wait,
  workInTime,
  promiseOneByOne,
  promiseTogetherWorkByLimit
} from "cttic-promise-helper";

方法

wait(time: number)

等待若干毫秒

workInTime(promise: Promise, time: number)

在若干秒内完成,否则报错

promiseOneByOne

promiseOneByOne<T, R>(
  list: Array<T>,
  handler: (item: T, index: number) => Promise<R>,
  error_handler?: (item: T, error: Error) => Promise<any>
)

排队,一个接一个地完成

promiseTogetherWorkByLimit

promiseTogetherWorkByLimit<T, R>(
  list: Array<T>,
  handler: (item: T) => Promise<R>,
  limit: number,
  error_handler?: (item: T, error: Error) => Promise<any>
)

排队,有若 limit 个队列(即并行数为 limit),每个任务会动态地选择最快的队列去完成,

promiseTogetherWorkByLimit v0.0.2

promiseTogetherWorkByLimit<T, R>(
  list: Array<T>,
  handler: (item: T) => Promise<R>,
  limit: number,
  error_handler?: (item: T, error: Error) => Promise<any>
)

//返回值格式更新为
{
  //promise.All 返回的数组
  promiseList: Promise.all(last_limit_p),
  //中断 promiseTogetherWorkByLimit 循环的方法 
  abortPromiseWorkLimit
}
//在需要中断循环时,调用 abortPromiseWorkLimit 方法即可