x秒前

/**
 * 格式化时间，1秒前，1分钟前 今天 10:11 昨天 10:11 9月11日 10：10
 * @param {Date} date 时间对象
 * @param {Date} currentDate 对比时间
 * @return {String} 格式化后的时间内容
 */
var shortTime = function(date, currentDate) {
    var now = currentDate,
        // 今日秒数
        todaySec = now.getHours() * 3600 + now.getMinutes() * 60 + now.getSeconds(),
        secDiff = Math.floor( (now.getTime() - date.getTime()) / 1000 );
    if(secDiff < 60) {
        secDiff = secDiff < 1 ? 1 : secDiff;
        return parseInt(secDiff) + '秒前';
    }
    if(secDiff <= 3600) {
        return parseInt(secDiff / 60) + "分钟之前";
    }
    var h = ("0" + date.getHours()).slice(-2),
        m = ("0" + date.getMinutes()).slice(-2), 
        d = date.getDate();
    return ( now.getDate() == d && secDiff < 86400 ) ?  ( "今天 " + h + ":" + m ) : 
           ( secDiff >= todaySec && ( secDiff <= 86400 + todaySec ) ) ? ( "昨天 " + h + ":" + m ) :
           ( (date.getMonth() + 1) + "月" + d + "日 " +  h + ":" + m );
};

//但一般我们会拿到一个"xxxx-xx-xx xx:xx:xx"的"发布时间",要相对当前时间格式化
var shortTime = function(date, currentDate) {
    var pubtimeThis = date.split(" ");
    var temp_a = pubtimeThis[0].split("-");
    var temp_b = pubtimeThis[1].split(":");
    date = new Date(temp_a[0], temp_a[1] - 1, temp_a[2], temp_b[0], temp_b[1]);

    var now = currentDate || (new Date()),
        // 今日秒数
        todaySec = now.getHours() * 3600 + now.getMinutes() * 60 + now.getSeconds(),
        secDiff = Math.floor( (now.getTime() - date.getTime()) / 1000 );
    if(secDiff < 60) {
        secDiff = secDiff < 1 ? 1 : secDiff;
        return parseInt(secDiff) + '秒前';
    }
    if(secDiff <= 3600) {
        return parseInt(secDiff / 60) + "分钟之前";
    }
    var h = ("0" + date.getHours()).slice(-2),
        m = ("0" + date.getMinutes()).slice(-2), 
        d = date.getDate();
    return  ( now.getDate() == d && secDiff < 86400 ) ?  ( "今天 " + h + ":" + m ) :
            ( secDiff >= todaySec && ( secDiff <= 86400 + todaySec ) ) ?  ( "昨天 " + h + ":" + m ) : 
            ( (date.getMonth() + 1) + "月" + d + "日 " +  h + ":" + m );
};