时间转换

moment.js

    function moment(timestamp) {
        var dateTarget = new Date(timestamp.replace(/-/g, '/')); // fix for iOS e.g: http://stackoverflow.com/questions/5324178/javascript-date-parsing-on-iphone
        var dateCurrent = new Date();

        var textMinute = dateTarget.getMinutes();
        var textHour = dateTarget.getHours();

        if (textMinute < 10) {
            textMinute = '0' + dateTarget.getMinutes();
        }

        if (textHour < 10) {
            textHour = '0' + dateTarget.getHours();
        }

        var textTime = textHour + ':' + textMinute;
        var textDate = (dateTarget.getMonth() + 1) + '月' + dateTarget.getDate() + '日';
        var textYear = dateTarget.getFullYear() + '年';

        var seconds = Math.floor((dateCurrent - dateTarget) / 1000);

        if (seconds === 0 || seconds < 0) {
            return '刚刚';
        }

        if (seconds < 5) {
            return ' ' + seconds + ' 秒前';
        }

        if (seconds < 10) {
            return ' 5 秒前';
        }

        if (seconds < 60) {
            return ' ' + Math.floor(seconds / 10) * 10 + ' 秒前';
        }

        if (seconds < 3600) {
            return ' ' + Math.floor(seconds / 60) + ' 分钟前';
        }

        if (seconds < 60 * 70) {
            return ' 1 小时前';
        }

        if (dateTarget.getFullYear() === dateCurrent.getFullYear()) {
            if (dateTarget.getMonth() === dateCurrent.getMonth() &&
                    dateCurrent.getDate() - dateTarget.getDate() < 2) {
                if (dateCurrent.getDate() - dateTarget.getDate() === 0) {
                    return '今天 ' + textTime;
                }

                return '昨天 ' + textTime;
                // @TODO 0331-0401 也要显示昨天
            }

            return ' ' + textDate + ' ' + textTime;
        }

        return ' ' + textYear + textDate + ' ' + textTime;
    }