js关于时间日期格式化方法

function dataTime(){
    //生成当前时间
    const date = new Date()
    let year = date.getFullYear() + ''
    let month = date.getMonth() + 1 + ''
    let day = date.getDate() + ''
    let hours = date.getHours() + ''
    let minutes = date.getMinutes() + ''
    let seconds = date.getSeconds() + ''
    return year + '-' + month.padStart(2,'0') + '-' + day.padStart(2,'0') + ' ' + hours.padStart(2,'0')  + ':' + minutes.padStart(2,'0') + ':' + seconds.padStart(2,'0')
}

//npm安装
npm i dayjs
//main.js中
import dayjs from "dayjs"
Vue.prototype.dayjs = dayjs;  //可以全局使用dayjs
//组件中调用
console.log(this.dayjs().format('YYYY-MM-DD HH:mm:ss'));  //2023-01-31 12:00:00