194. (NodeJs) [Mac Os] [dayjs] : day js 모듈 사용해 특정 일자에서 날짜 및 시간 빼기 수행 - subtract

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[개발 환경 설정]

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개발 툴 : VS CODE

개발 언어 :NodeJs

 

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[사전) NodeJS 모듈 추가 방법]

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https://blog.naver.com/kkh0977/223346927212

190. (NodeJs) [Mac Os] [dayjs] : day js 모듈 설치 방법

 

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[사전) NodeJS 프로젝트 설정 방법]

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[app.js : 소스 코드]

 

// ----------------------------------------------------------------------------------------------

// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
const express = require('express')
const app = express()



// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
app.set('view engine', 'ejs') // [Page] : [Render]
app.set('views', './views') // [Page] : [Render]



// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
var bodyParser = require('body-parser'); // [body-parser 사용]

app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());



// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
var nocache = require('nocache'); // [nocache 사용]
app.use(nocache());


// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
const dayjs = require('dayjs'); // [날짜 모듈]

// ----------------------------------------------------------------------------------------------

// [Get] : Path = [/dayjs] : http://localhost:3000/dayjs
app.get('/dayjs', function (req, res) {
    console.log("")
    console.log("==============================================================================")
    console.log("[Server] :: [App] :: [Path = /dayjs] :: [Start]")
    console.log("==============================================================================")
    console.log("")


    try {

        // [dayjs 객체 생성 실시]
        var date = dayjs("2024-01-03 13:45:30", "YYYY-MM-DD HH:mm:ss");


        // [subtract사용해 날짜 및 시간 빼기 실시]
        var yearSubtract = date.subtract(1, "year");
        var monthSubtract = date.subtract(1, "month");
        var daySubtract = date.subtract(1, "day");
        var hourSubtract = date.subtract(1, "hour");
        var minuteSubtract = date.subtract(1, "minute");
        var secondSubtract = date.subtract(1, "second");


        // [로그 출력]
        console.log("")
        console.log("==============================================================================")
        console.log("[Server] :: [App] :: [Path = /dayjs] :: [Log]")
        console.log("--------------------------------------------------------------------------")
        console.log("date :: " + date.format("YYYY-MM-DD HH:mm:ss"))
        console.log("--------------------------------------------------------------------------")
        console.log("yearSubtract :: " + yearSubtract.format("YYYY-MM-DD HH:mm:ss"))
        console.log("--------------------------------------------------------------------------")
        console.log("monthSubtract :: " + monthSubtract.format("YYYY-MM-DD HH:mm:ss"))
        console.log("--------------------------------------------------------------------------")
        console.log("daySubtract :: " + daySubtract.format("YYYY-MM-DD HH:mm:ss"))
        console.log("--------------------------------------------------------------------------")
        console.log("hourSubtract :: " + hourSubtract.format("YYYY-MM-DD HH:mm:ss"))
        console.log("--------------------------------------------------------------------------")
        console.log("minuteSubtract :: " + minuteSubtract.format("YYYY-MM-DD HH:mm:ss"))
        console.log("--------------------------------------------------------------------------")
        console.log("secondSubtract :: " + secondSubtract.format("YYYY-MM-DD HH:mm:ss"))
        console.log("==============================================================================")
        console.log("")


        // [http 리턴]
        res.status(200).send(JSON.stringify({"result" : "success"})); // [http 반환]
        
    }
    catch (err) {
        res.status(500).send(JSON.stringify({"result" : 'error'})); // [http 반환]
    }
    
})

// ----------------------------------------------------------------------------------------------

// [Server] : [Start]
//*
app.listen(3000, function () {
    console.log("")
    console.log("==============================================================================")
    console.log("[Server] :: [Port = 3000] :: [Start]")
    console.log("==============================================================================")
    console.log("")
})
// */

// ----------------------------------------------------------------------------------------------

 

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[결과 출력]

​

 

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