NPM basic use

1、 install

• npm It is a module sharing community all over the world , You can use the modules developed by others in this community for free .

• Community address ：https://www.npmjs.com/

• Only care about how to use , Don't worry about how to package , Because they may also be introducing other modules when packaging

2、 Use

• Open the website   Query the keyword of the module you need in the search box

Let's say 1234567 Intelligent conversion to uppercase      search “ Capitalization ”

• Because of the installation NodeJS It was already installed at the time of npm Package manager , So you can use ; For example, we found one nzh Module , You need to use npm Command to install npm install nzh

• At this time, refer to the provided API To use          nzh Reference documents

var Nzh = require("nzh");
console.log(Nzh.cn.encodeS(100111))//  Turn to Chinese lowercase 
console.log(Nzh.cn.encodeB(100111))//  Capitalize in Chinese  
console.log(Nzh.cn.encodeS(1.23456789e+21))//  Scientific notation string  
console.log(Nzh.cn.toMoney(100111.11))//  Transfer amount in Chinese 

Small cases Date conversion

var http = require("http")
var  solarLunar = require('solarLunar') 
var server = http.createServer(function (req,res) {
    // Character set 
    res.setHeader("Content-type","text/html;charset=UTF8")
    let arr = req.url.match(/\/(.+)\/(.+)\/(.+)$/)
    
    let $1 = arr[1];
    let $2 = arr[2];
    let $3 = arr[3];
    console.log($1,$2,$3)
    var gl = solarLunar.solar2lunar($1,$2,$3) // The entered date is the Gregorian calendar 
    var nl = solarLunar.lunar2solar($1,$2,$3) // The entered day is the lunar calendar 
    res.end(`<h1> This year is ${gl.cYear} year ${gl.cMonth} month ${gl.cDay}${gl.animal} year </h1>`)
    
})
server.listen(3000)