js时间转化

const defaultTicks = 621355968000000000;

export function convertDateToTicks(date = new Date()) {
    return date.getTime() * 10000 + defaultTicks;
}

export function convertTicksToLocalDate(ticks) {
    return new Date((ticks - defaultTicks) / 10000 + new Date().getTimezoneOffset() * 60 * 1000);
}

export function formatDate(data, format) {
    var o = {
        "M+": data.getMonth() + 1, //month 
        "d+": data.getDate(), //day 
        "h+": data.getHours(), //hour 
        "m+": data.getMinutes(), //minute 
        "s+": data.getSeconds(), //second 
        "q+": Math.floor((data.getMonth() + 3) / 3), //quarter 
        "k": data.getDay(),
        "S": data.getMilliseconds() //millisecond 
    }

    if (/(y+)/.test(format)) {
        format = format.replace(RegExp.$1, (data.getFullYear() + "").substr(4 - RegExp.$1.length));
    }

    for (var k in o) {
        if (new RegExp("(" + k + ")").test(format)) {
            format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
        }
    }
    return format;
}