javascript - 如何把時間戳記轉換成日期類型的格式

Question

如何把時間戳記轉換成日期類型的格式

ringa_lee · Answer

moment

http://momentjs.cn

看看要哪種格式

巴扎黑 · Answer

拿走不謝。我是新一代的活雷鋒

/**
 * 时间格式方法
 * 
 * @param {any} timeStamp  时间戳，秒级/毫秒级
 * @param {any} type 格式化时间类型，默认  Y-M-D H:I:S
 * @returns {string} formatTime 格式化后的时间 例如： 2017-05-05 12:09:22
 */
function formatDate(timeStamp, type = 'Y-M-D H:I:S', auto = false) {
    let time = (timeStamp + '').length === 10 ? new Date(parseInt(timeStamp) * 1000) : new Date(parseInt(timeStamp));
    let _year = time.getFullYear();
    let _month = (time.getMonth() + 1) < 10 ? '0' + (time.getMonth() + 1) : (time.getMonth() + 1);
    let _date = time.getDate() < 10 ? '0' + time.getDate() : time.getDate();
    let _hours = time.getHours() < 10 ? '0' + time.getHours() : time.getHours();
    let _minutes = time.getMinutes() < 10 ? '0' + time.getMinutes() : time.getMinutes();
    let _secconds = time.getSeconds() < 10 ? '0' + time.getSeconds() : time.getSeconds();
    let formatTime = '';
    let distinctTime = new Date().getTime() - time.getTime();

    if (auto) {
        if (distinctTime <= (1 * 60 * 1000)) {
            // console.log('一分钟以内，以秒数计算');
            let _s = Math.floor((distinctTime / 1000) % 60);
            formatTime = _s + '秒前';
        } else if (distinctTime <= (1 * 3600 * 1000)) {
            // console.log('一小时以内,以分钟计算');
            let _m = Math.floor((distinctTime / (60 * 1000)) % 60);
            formatTime = _m + '分钟前';
        } else if (distinctTime <= (24 * 3600 * 1000)) {
            // console.log('一天以内，以小时计算');
            let _h = Math.floor((distinctTime / (60 * 60 * 1000)) % 24);
            formatTime = _h + '小时前';
        } else if (distinctTime <= (30 * 24 * 3600 * 1000)) {
            let _d = Math.floor((distinctTime / (24 * 60 * 60 * 1000)) % 30);
            formatTime = _d + '天前';
            // console.log('30天以内,以天数计算');
        } else {
            // 30天以外只显示年月日
            formatTime = _year + '-' + _month + '-' + _date;
        }
    } else {

        switch (type) {
            case 'Y-M-D H:I:S':
                formatTime = _year + '-' + _month + '-' + _date + ' ' + _hours + ':' + _minutes + ':' + _secconds;
                break;
            case 'Y-M-D H:I:S zh':
                formatTime = _year + '年' + _month + '月' + _date + '日  ' + _hours + ':' + _minutes + ':' + _secconds;
                break;
            case 'Y-M-D H:I':
                formatTime = _year + '-' + _month + '-' + _date + ' ' + _hours + ':' + _minutes;
                break;
            case 'Y-M-D H':
                formatTime = _year + '-' + _month + '-' + _date + ' ' + _hours;
                break;
            case 'Y-M-D':
                formatTime = _year + '-' + _month + '-' + _date;
                break;
            case 'Y-M-D zh':
                formatTime = _year + '年' + _month + '月' + _date + '日';
                break;
            case 'Y-M':
                formatTime = _year + '-' + _month;
                break;
            case 'Y':
                formatTime = _year;
                break;
            case 'M':
                formatTime = _month;
                break;
            case 'D':
                formatTime = _date;
                break;
            case 'H':
                formatTime = _hours;
                break;
            case 'I':
                formatTime = _minutes;
                break;
            case 'S':
                formatTime = _secconds;
                break;
            default:
                formatTime = _year + '-' + _month + '-' + _date + ' ' + _hours + ':' + _minutes + ':' + _secconds;
                break;
        }
    }
    // 返回格式化的日期字符串
    return formatTime;
}