js时间去掉时分秒

function getOnlyDate(date) {
    const year = date.getFullYear();
    const month = ('0' + (date.getMonth() + 1)).slice(-2); // 月份是从0开始的，所以需要+1
    const day = ('0' + date.getDate()).slice(-2);
    return `${year}-${month}-${day}`;
}

// 使用示例
const now = new Date();
const onlyDate = getOnlyDate(now);
console.log(onlyDate); // 输出格式如 "2023-04-05"

const now = new Date();
const onlyDate = now.toLocaleDateString('zh-CN', { year: 'numeric', month: '2-digit', day: '2-digit' });
console.log(onlyDate); // 输出格式可能因浏览器而异，如 "2023/04/05" 或 "2023-04-05"

function removeTimeFromString(dateTimeString) {
    return dateTimeString.split('T')[0];
}

// 使用示例
const dateTimeString = "2023-04-05T12:34:56";
const onlyDate = removeTimeFromString(dateTimeString);
console.log(onlyDate); // 输出 "2023-04-05"

// 需要先引入moment.js库
const moment = require('moment');

const now = moment();
const onlyDate = now.format('YYYY-MM-DD');
console.log(onlyDate); // 输出 "2023-04-05"