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@jamma.cn/route

v0.1.0

Published

the route programming mode

Downloads

5

Readme


theme : "white"

@jamma/route

路由式编程模式

别名:流水线式编程模式

作者:鱼哥


流水线历史

  • 1769年,英国人乔赛亚·韦奇伍德开办埃特鲁利亚陶瓷工厂

  • 20世纪初美国工程师泰勒发明流水线理论

  • 1913年,福特汽车公司开发出了世界上第一条流水线


install

npm i @jamma/route

use:

const Route = require('@jamma/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
let fn = () => {
    return {ret: 1}
}

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

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

--

最小例子 async

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

// 创建路由
let route = new Route(fn)

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

--

工序函数

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

已知问题

  • 异步函数比同步函数慢10倍