js处理ISO8601时间-蒲公英云

js处理ISO8601时间

原文：https://blog.csdn.net/mayixixi/article/details/8030473

ISO 8601扩展格式为： YYYY-MM-DDTHHss.sssZ 例如：(下图中红色边框圈起来的部分)

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处理代码如下：

function ISO8601DateStr2Date (string) {
    var regexp = "([0-9]{4})(-([0-9]{2})(-([0-9]{2})" +
        "(T([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?" +
        "(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?";
    if(string)
    {
        var d = string.match(new RegExp(regexp));
        var offset = 0;
        var date = new Date(d[1], 0, 1);
        if (d[3]) {
            date.setMonth(d[3] - 1);
        }
        if (d[5]) {
            date.setDate(d[5]);
        }
        if (d[7]) {
            date.setHours(d[7]);
        }
        if (d[8]) {
            date.setMinutes(d[8]);
        }
        if (d[10]) {
            date.setSeconds(d[10]);
        }
        if (d[12]) {
            date.setMilliseconds(Number("0." + d[12]) * 1000);
        }
        if (d[14]) {
            offset = (Number(d[16]) * 60) + Number(d[17]);
            offset *= ((d[15] == '-') ? 1 : -1);
        }
        offset -= date.getTimezoneOffset();
        var time = (Number(date) + (offset * 60 * 1000));
        return time;
    }
    else
    {
        return null;
    }
}