JavaScript日期工具类DateUtils定义与用法示例

 DateUtils = { patterns: { PATTERN_ERA: 'G', //Era 标志符 Era strings. For example: "AD" and "BC" PATTERN_YEAR: 'y', //年 PATTERN_MONTH: 'M', //月份 PATTERN_DAY_OF_MONTH: 'd', //月份的天数 PATTERN_HOUR_OF_DAY1: 'k', //一天中的小时数（1-24） PATTERN_HOUR_OF_DAY0: 'H', //24小时制，一天中的小时数（0-23） PATTERN_MINUTE: 'm', //小时中的分钟数 PATTERN_SECOND: 's', //秒 PATTERN_MILLISECOND: 'S', //毫秒 PATTERN_DAY_OF_WEEK: 'E', //一周中对应的星期，如星期一，周一 PATTERN_DAY_OF_YEAR: 'D', //一年中的第几天 PATTERN_DAY_OF_WEEK_IN_MONTH: 'F', //一月中的第几个星期(会把这个月总共过的天数除以7,不够准确，推荐用W) PATTERN_WEEK_OF_YEAR: 'w', //一年中的第几个星期 PATTERN_WEEK_OF_MONTH: 'W', //一月中的第几星期(会根据实际情况来算) PATTERN_AM_PM: 'a', //上下午标识 PATTERN_HOUR1: 'h', //12小时制 ，am/pm 中的小时数（1-12） PATTERN_HOUR0: 'K', //和h类型 PATTERN_ZONE_NAME: 'z', //时区名 PATTERN_ZONE_VALUE: 'Z', //时区值 PATTERN_WEEK_YEAR: 'Y', //和y类型 PATTERN_ISO_DAY_OF_WEEK: 'u', PATTERN_ISO_ZONE: 'X' }, week: { 'ch': { "0": "\u65e5", "1": "\u4e00", "2": "\u4e8c", "3": "\u4e09", "4": "\u56db", "5": "\u4e94", "6": "\u516d" }, 'en': { "0": "Sunday", "1": "Monday", "2": "Tuesday", "3": "Wednesday", "4": "Thursday", "5": "Friday", "6": "Saturday" } }, //获取当前时间 getCurrentTime: function() { var today = new Date(); var year = today.getFullYear(); var month = today.getMonth() + 1; var day = today.getDate(); var hours = today.getHours(); var minutes = today.getMinutes(); var seconds = today.getSeconds(); var timeString = year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + seconds; return timeString; }, /* * 比较时间大小 * time1>time2 return 1 * time1 Date.parse(time2.replace(/-/g, "/"))) { return 1; } else if(Date.parse(time1.replace(/-/g, "/")) = 2) ? "0" + month : month; break; case Bee.DateUtils.patterns.PATTERN_DAY_OF_MONTH: //d var days = date.getDate(); replacement = (days <10 && matchstr.length>= 2) ? "0" + days : days; break; case Bee.DateUtils.patterns.PATTERN_HOUR_OF_DAY1: //k(1~24) var hours24 = date.getHours(); replacement = hours24; break; case Bee.DateUtils.patterns.PATTERN_HOUR_OF_DAY0: //H(0~23) var hours24 = date.getHours(); replacement = (hours24 <10 && matchstr.length>= 2) ? "0" + hours24 : hours24; break; case Bee.DateUtils.patterns.PATTERN_MINUTE: //m var minutes = date.getMinutes(); replacement = (minutes <10 && matchstr.length>= 2) ? "0" + minutes : minutes; break; case Bee.DateUtils.patterns.PATTERN_SECOND: //s var seconds = date.getSeconds(); replacement = (seconds <10 && matchstr.length>= 2) ? "0" + seconds : seconds; break; case Bee.DateUtils.patterns.PATTERN_MILLISECOND: //S var milliSeconds = date.getMilliseconds(); replacement = milliSeconds; break; case Bee.DateUtils.patterns.PATTERN_DAY_OF_WEEK: //E var day = date.getDay(); replacement = Bee.DateUtils.week['ch'][day]; break; case Bee.DateUtils.patterns.PATTERN_DAY_OF_YEAR: //D replacement = Bee.DateUtils.dayOfTheYear(date); break; case Bee.DateUtils.patterns.PATTERN_DAY_OF_WEEK_IN_MONTH: //F var days = date.getDate(); replacement = Math.floor(days / 7); break; case Bee.DateUtils.patterns.PATTERN_WEEK_OF_YEAR: //w var days = Bee.DateUtils.dayOfTheYear(date); replacement = Math.ceil(days / 7); break; case Bee.DateUtils.patterns.PATTERN_WEEK_OF_MONTH: //W var days = date.getDate(); replacement = Math.ceil(days / 7); break; case Bee.DateUtils.patterns.PATTERN_AM_PM: //a var hours24 = date.getHours(); replacement = hours24 <12 ? "\u4e0a\u5348" : "\u4e0b\u5348"; break; case bee.dateutils.patterns.pattern_hour1:>= 2) ? "0" + hours12 : hours12; break; case Bee.DateUtils.patterns.PATTERN_HOUR0: //K(0~11) var hours12 = date.getHours() % 12; replacement = hours12; break; case Bee.DateUtils.patterns.PATTERN_ZONE_NAME: //z replacement = Bee.DateUtils.getZoneNameValue(date)['name']; break; case Bee.DateUtils.patterns.PATTERN_ZONE_VALUE: //Z replacement = Bee.DateUtils.getZoneNameValue(date)['value']; break; case Bee.DateUtils.patterns.PATTERN_ISO_DAY_OF_WEEK: //u break; case Bee.DateUtils.patterns.PATTERN_ISO_ZONE: //X break; default: break; } return replacement; }); }, /** * 计算一个日期是当年的第几天 * @param {Object} date */ dayOfTheYear: function(date) { var obj = new Date(date); var year = obj.getFullYear(); var month = obj.getMonth(); //从0开始 var days = obj.getDate(); var daysArr = [31, (this.isLeapYear(year) ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; for(var i = 0; i