js时间转化为几天前,几小时前，几分钟前

function getDateDiff(dateTimeStamp){var minute = 1000 * 60;var hour = minute * 60;var day = hour * 24;var halfamonth = day * 15;var month = day * 30;var now = new Date().getTime();var diffValue = now - dateTimeStamp;if(diffValue < 0){return;}var monthC =diffValue/month;var weekC =diffValue/(7*day);var dayC =diffValue/day;var hourC =diffValue/hour;var minC =diffValue/minute;if(monthC>=1){result="" + parseInt(monthC) + "月前";}else if(weekC>=1){result="" + parseInt(weekC) + "周前";}else if(dayC>=1){result=""+ parseInt(dayC) +"天前";}else if(hourC>=1){result=""+ parseInt(hourC) +"小时前";}else if(minC>=1){result=""+ parseInt(minC) +"分钟前";}elseresult="刚刚";return result;
}
转换标准时间为时间戳：
function getDateTimeStamp(dateStr){ return Date.parse(dateStr.replace(/-/gi,"/"));}