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jm-route

v0.1.2

Published

the route programming mode

Downloads

19

Readme

路由式编程 jm-route

路由式编程模式,别名:流水线式编程模式

install

npm i jm-route

use

const Route = require('jm-route')
const route = new Route(opts=>{}))

两个概念

  • 工序函数 fn

  • 路由 Route

工序函数 fn

  • 成品函数

  • 加工函数

  • 混合函数

成品函数

执行完成时返回值

function fn1(){
    return {name: '鱼哥'}
}

加工函数

执行完成时不返回值

function fn1(opts){
    if(opts.name) return // 可以 return 但不返回任何值
    opts.name = '鱼哥'
}

混合函数

成品函数和加工函数的混合写法

function fn1(opts){
    if(opts.name) return {name: opts.name}
    opts.name = '鱼哥'
}

支持异步函数

function async fn1(opts){
    if(opts.name) return {name: opts.name}
    opts.name = '鱼哥'
}

路由 Route

一个以上工序函数的组合

构造函数

接受一个以上函数作为参数

new Route(fn)

new Route([fn1, fn2, ..., fnn]])

new Route(fn1, fn2, ..., fnn)

路由执行 execute

  • 顺序执行 route 中的函数

  • 遇到结果返回 promise

配置参数

  • logging 是否打印日志,默认false

  • benchmark 是否计算耗时,默认false

例子

最小例子

// 成品函数
const fn = () => {
    return {ret: 1}
}

// 创建路由
const route = new Route(fn)
route.logging = true // 打开日志
route.benchmakr = true // 打开耗时计算

// 路由执行
const doc = await route.execute()

最小例子 async

// 成品函数
const fn = async () => {
    return {ret: 1}
}

// 创建路由
const route = new Route(fn)

// 路由执行
const doc = await route.execute()

工序函数

const filter1 = () => {
    console.log('加工函数')
}
const filter2 = async () => {
    console.log('异步加工函数')
}
const fn = async () => {
    return {ret: 1}
}
const route = new Route(filter1, filter2,fn)
const doc = await route.execute()

已知问题

  • 异步函数比同步函数慢10倍