js 取当前时间的年月日时分秒

function getCurrentDateTime() {
    const now = new Date();
    const year = now.getFullYear();
    const month = String(now.getMonth() + 1).padStart(2, '0'); // 月份从0开始，需要加1
    const day = String(now.getDate()).padStart(2, '0');
    const hours = String(now.getHours()).padStart(2, '0');
    const minutes = String(now.getMinutes()).padStart(2, '0');
    const seconds = String(now.getSeconds()).padStart(2, '0');

    return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
}

console.log(getCurrentDateTime());

function getCurrentDateTime() {
    const now = new Date();
    const formatter = new Intl.DateTimeFormat('zh-CN', {
        year: 'numeric',
        month: '2-digit',
        day: '2-digit',
        hour: '2-digit',
        minute: '2-digit',
        second: '2-digit',
        hour12: false
    });

    return formatter.format(now);
}

console.log(getCurrentDateTime());

const moment = require('moment');

function getCurrentDateTime() {
    return moment().format('YYYY-MM-DD HH:mm:ss');
}

console.log(getCurrentDateTime());

const { format } = require('date-fns');

function getCurrentDateTime() {
    const now = new Date();
    return format(now, 'yyyy-MM-dd HH:mm:ss');
}

console.log(getCurrentDateTime());