javascript中对Date类型的常用操作小结/** 3. * 日期时间脚本库方法列表: 4. * (1)Date.isValiDate:日期合法性验证 5. * (2)Date.isValiTime:时间合法性验证 6. * (3)Date.isValiDateTime:日期和时间合法性验证 7. * (4)Date.prototype.isLeapYear:判断是否闰年 8. * (5)Date.prototype.format:日期格式化 9. * (6)Date.stringToDate:字符串转成日期类型 10. * (7)Date.daysBetween:计算两个日期的天数差 11. * (8)Date.prototype.dateAdd:日期计算,支持正负数 12. * (9)Date.prototype.dateDiff:比较日期差:比较两个时期相同的字段,返回相差值 13. * (10)Date.prototype.toArray:把日期分割成数组:按数组序号分别为:年月日时分秒 14. * (11)Date.prototype.datePart:取得日期数据信息 15. */ 16. 17. 18./** 19. * 日期合法性验证:判断dataStr是否符合formatStr指定的日期格式 20. * 示例: 21. * (1)alert(Date.isValiDate("2008-02-29","yyyy-MM-dd"));//true 22. * (2)alert(Date.isValiDate("aaaa-58-29","yyyy-MM-dd"));//false 23. * dateStr:必选,日期字符串 24. * formatStr:可选,格式字符串,可选格式有:(1)yyyy-MM-dd(默认格式)或YYYY-MM-DD (2)yyyy/MM/dd或YYYY/MM/DD (3)MM-dd-yyyy或MM-DD-YYYY (4)MM/dd/yyyy或MM/DD/YYYY 25. */ 26.Date.isValiDate = function(dateStr, formatStr) 27.{ 28.if(!dateStr){ 29.return false; 30.} 31.if(!formatStr){ 32.formatStr = "yyyy-MM-dd";//默认格式:yyyy-MM-dd33.} 34.if(dateStr.length!=formatStr.length){ 35.return false; 36.}else{ 37.if(formatStr=="yyyy-MM-dd"||formatStr=="YYYY-MM-DD"){ 38.var r1=/^(((((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26]))))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-([0-2][0-9]))))|(d{2}(([02468][1235679])|([13579][01345789]))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-(([0-1][0-9])|(2[0-8]))))))$/; 39.return r1.test(dateStr); 40.}else if(formatStr=="yyyy/MM/dd"||formatStr=="YYYY/MM/DD"){ 41.var r2=/^(((((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26]))))/((((0[13578])|(1[02]))/(([0-2][0-9])|(3[01])))|(((0[469])|(11))/(([0-2][0-9])|(30)))|(02/([0-2][0-9]))))|(d{2}(([02468][1235679])|([13579][01345789]))/((((0[13578])|(1[02]))/(([0-2][0-9])|(3[01])))|(((0[469])|(11))/(([0-2][0-9])|(30)))|(02/(([0-1][0-9])|(2[0-8]))))))$/; 42.return r2.test(dateStr); 43.}else if(formatStr=="MM-dd-yyyy"||formatStr=="MM-DD-YYYY"){ 44.var r3=/^((((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-([0-2][0-9])))-(((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26])))))|(((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-(([0-1][0-9])|(2[0-8])))))-d{2}(([02468][1235679])|([13579][01345789])))$/; 45.return r3.test(dateStr); 46.}else if(formatStr=="MM/dd/yyyy"||formatStr=="MM/DD/YYYY"){ 47.var r4=/^((((((0[13578])|(1[02]))/(([0-2][0-9])|(3[01])))|(((0[469])|(11))/(([0-2][0-9])|(30)))|(02/([0-2][0-9])))/(((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26])))))|(((((0[13578])|(1[02]))/(([0-2][0-9])|(3[01])))|(((0[469])|(11))/(([0-2][0-9])|(30)))|(02/(([0-1][0-9])|(2[0-8])))))/d{2}(([02468][1235679])|([13579][01345789])))$/; 48.return r4.test(dateStr); 49.}else{ 50.alert("日期格式不正确!"); 51.return false; 52.} 53.} 54.return false; 55.} 56. 57. 58./** 59. * 时间合法性验证:判断timeStr是否符合formatStr指定的时间格式 60. * 示例: 61. * (1)alert(Date.isValiTime("23:59:59","hh:mm:ss"));//true 62. * (2)alert(Date.isValiTime("24-68-89","hh:mm:ss"));//false 63. * timeStr:必选,日期字符串 64. * formatStr:可选,格式字符串,可选格式有:(1)hh:mm:ss(默认格式) (2)hh-mm-ss (3)hh/mm/ss 65. */ 66.Date.isValiTime = function(timeStr, formatStr) 67.{ 68.if(!timeStr){ 69.return false; 70.} 71.if(!formatStr){ 72.formatStr = "hh:mm:ss";//默认格式:hh:mm:ss73.} 74.if(timeStr.length!=formatStr.length){ 75.return false; 76.}else{ 77.if(formatStr=="hh:mm:ss"){ 78.var r1=/^(([0-1][0-9])|(2[0-3])):([0-5][0-9]):([0-5][0-9])$/; 79.return r1.test(timeStr); 80.}else if(formatStr=="hh-mm-ss"){ 81.var r2=/^(([0-1][0-9])|(2[0-3]))-([0-5][0-9])-([0-5][0-9])$/; 82.return r2.test(timeStr); 83.}else if(formatStr=="hh/mm/ss"){ 84.var r3=/^(([0-1][0-9])|(2[0-3]))/([0-5][0-9])/([0-5][0-9])$/; 85.return r3.test(timeStr); 86.}else{ 87.alert("时间格式不正确!"); 88.return false; 89.} 90.} 91.return false; 92.} 93. 94. 95./** 96. * 日期和时间合法性验证 97. * 格式:yyyy-MM-dd hh:mm:ss 98. */ 99.Date.isValiDateTime = function(dateTimeStr) 100.{ 101.var dateTimeReg=/^(((((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26]))))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-([0-2][0-9]))))|(d{2}(([02468][1235679])|([13579][01345789]))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-(([0-1][0-9])|(2[0-8]))))))(s{1}(([0-1][0-9])|(2[0-3])):([0-5][0-9]):([0-5][0-9]))?$/ 102.return dateTimeReg.test(dateTimeStr); 103.} 104. 105. 106./** 107. * 判断闰年 :一般规律为:四年一闰,百年不闰,四百年再闰。 108. */ 109.Date.prototype.isLeapYear = function() 110.{ 111.return (this.getYear()%4==0&&((this.getYear()%100!=0)||(this.getYear()%400==0))); 112.} 113. 114. 115./** 116. * 日期格式化: 117. * formatStr:可选,格式字符串,默认格式:yyyy-MM-dd hh:mm:ss 118. * 约定如下格式: 119. * (1)YYYY/yyyy/YY/yy 表示年份 120. * (2)MM/M 月份 121. * (3)W/w 星期 122. * (4)dd/DD/d/D 日期 123. * (5)hh/HH/h/H 时间 124. * (6)mm/m 分钟 125. * (7)ss/SS/s/S 秒 126. * (8)iii 毫秒 127. */ 128.Date.prototype.format = function(formatStr) 129.{ 130.var str = formatStr; 131.if(!formatStr){ 132.str = "yyyy-MM-dd hh:mm:ss";//默认格式133.} 134.var Week = ["日","一","二","三","四","五","六"]; 135. 136.str=str.replace(/yyyy|YYYY/,this.getFullYear()); 137.str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():"0" + (this.getYear() % 100)); 138. 139.str=str.replace(/MM/,this.getMonth()>=9?(parseInt(this.getMonth())+1).toString():"0" + (parseInt(this.getMonth())+1)); 140.str=str.replace(/M/g,(parseInt(this.getMonth())+1)); 141. 142.str=str.replace(/w|W/g,Week[this.getDay()]); 143. 144.str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():"0" + this.getDate()); 145.str=str.replace(/d|D/g,this.getDate()); 146. 147.str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():"0" + this.getHours()); 148.str=str.replace(/h|H/g,this.getHours()); 149.str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():"0" + this.getMinutes()); 150.str=str.replace(/m/g,this.getMinutes()); 151. 152.str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():"0" + this.getSeconds()); 153.str=str.replace(/s|S/g,this.getSeconds()); 154. 155.str=str.replace(/iii/g,this.getMilliseconds()<10?"00"+this.getMilliseconds():(this.getMilliseconds()<100?"0"+this.getMilliseconds():this.getMilliseconds())); 156. 157.return str; 158.} 159. 160. 161./** 162. * 字符串转成日期类型: 163. * dateStr:必选,日期字符串,如果无法解析成日期类型,返回null 164. * 格式: 165. * (1)yyyy/MM/dd:IE和FF通用 166. * (2)MM/dd/yyyy:IE和FF通用 167. * (3)MM-dd-yyyy:仅IE 168. * (4)yyyy-MM-dd:非IE,且时钟被解析在8点整 169. */ 170.Date.stringToDate = function(dateStr) 171.{ 172.if(!dateStr){ 173.alert("字符串无法解析为日期"); 174.return null; 175.}else{ 176.if(Date.isValiDate(dateStr,"yyyy/MM/dd")||Date.isValiDate(dateStr,"MM/dd/yyyy")){ 177.return new Date(Date.parse(dateStr)); 178.}else{ 179.if((!-[1,])){//IE180.if(Date.isValiDate(dateStr,"MM-dd-yyyy")){ 181.return new Date(Date.parse(dateStr)); 182.}else{ 183.alert("字符串无法解析为日期"); 184.return null; 185.} 186.}else{//非IE187.if(Date.isValiDate(dateStr,"yyyy-MM-dd")){ 188.return new Date(Date.parse(dateStr)); 189.}else{ 190.alert("字符串无法解析为日期"); 191.return null; 192.} 193.} 194.} 195.} 196.return null; 197.} 198. 199. 200./** 201. * 计算两个日期的天数差: 202. * dateOne:必选,必须是Data类型的实例 203. * dateTwo:必选,必须是Data类型的实例 204. */ 205.Date.daysBetween = function(dateOne,dateTwo) 206.{ 207.if((dateOne instanceof Date)==false||(dateTwo instanceof Date)==false){ 208.return 0; 209.}else{ 210.return Math.abs(Math.floor((dateOne.getTime()-dateTwo.getTime())/1000/60/60/24)); 211.} 212.} 213. 214. 215./** 216. * 日期计算:支持负数,即可加可减,返回计算后的日期 217. * num:必选,必须是数字,且正数是时期加,负数是日期减 218. * field:可选,标识是在哪个字段上进行相加或相减,字段见如下的约定。无此参数时,默认为d 219. * 约定如下格式: 220. * (1)Y/y 年 221. * (2)M 月 222. * (3)W/w 周 223. * (4)D/d 日 224. * (5)H/h 时 225. * (6)m 分 226. * (7)S/s 秒 227. * (8)Q/q 季 228. */ 229.Date.prototype.dateAdd = function(num, field) 230.{ 231.if((!num)||isNaN(num)||parseInt(num)==0){ 232.return this; 233.} 234.if(!field){ 235.field = "d"; 236.} 237.switch(field){ 238.case "Y": 239.case "y":return new Date((this.getFullYear()+num), this.getMonth(), this.getDate(), this.getHours(), this.getMinutes(), this.getSeconds());break; 240.case "Q": 241.case "q":return new Date(this.getFullYear(), (this.getMonth()+num*3), this.getDate(), this.getHours(), this.getMinutes(), this.getSeconds());break; 242.case "M":return new Date(this.getFullYear(), this.getMonth()+num, this.getDate(), this.getHours(), this.getMinutes(), this.getSeconds());break; 243.case "W": 244.case "w":return new Date(Date.parse(this) + ((86400000 * 7) * num));break; 245.case "D": 246.case "d":return new Date(Date.parse(this) + (86400000 * num));break; 247.case "H": 248.case "h":return new Date(Date.parse(this) + (3600000 * num));break; 249.case "m":return new Date(Date.parse(this) + (60000 * num));break; 250.case "S": 251.case "s":return new Date(Date.parse(this) + (1000 * num));break; 252.default: return this; 253.} 254.return this; 255.} 256. 257. 258./** 259. * 比较日期差:比较两个时期相同的字段,返回相差值 260. * dtEnd:必选,必须是Data类型的实例 261. * field:可选,标识是在哪个字段上进行比较,字段见如下的约定。无此参数时,默认为d 262. * 约定如下格式: 263. * (1)Y/y 年 264. * (2)M 月 265. * (3)W/w 周 266. * (4)D/d 日 267. * (5)H/h 时 268. * (6)m 分 269. * (7)S/s 秒 270. */ 271.Date.prototype.dateDiff = function(dtEnd, field) 272.{ 273.var dtStart = this; 274.if((dtEnd instanceof Date)==false){ 275.return 0; 276.}else{ 277.if(!field){ 278.field = "d"; 279.} 280.switch(field){ 281.case "Y": 282.case "y":return dtEnd.getFullYear() - dtStart.getFullYear();break; 283.case "M":return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);break; 284.case "W": 285.case "w":return parseInt((dtEnd - dtStart) / (86400000 * 7));break; 286.case "D": 287.case "d":return parseInt((dtEnd - dtStart) / 86400000);break; 288.case "H": 289.case "h":return parseInt((dtEnd - dtStart) / 3600000);break; 290.case "m":return parseInt((dtEnd - dtStart) / 60000);break; 291.case "S": 292.case "s":return parseInt((dtEnd - dtStart) / 1000);break; 293.default: return 0; 294.} 295.return 0; 296.} 297.} 298. 299. 300./** 301. * 把日期分割成数组:按数组序号分别为:年月日时分秒 302. */ 303.Date.prototype.toArray = function() 304.{ 305.var myArray = new Array(); 306.myArray[0] = this.getFullYear(); 307.myArray[1] = this.getMonth(); 308.myArray[2] = this.getDate(); 309.myArray[3] = this.getHours(); 310.myArray[4] = this.getMinutes(); 311.myArray[5] = this.getSeconds(); 312.return myArray; 313.} 314. 315. 316./** 317. * 取得日期数据信息: 318. * field:可选,标识是在哪个字段上进行比较,字段见如下的约定。无此参数时,默认为d 319. * (1)Y/y 年 320. * (2)M 月 321. * (3)W/w 周 322. * (4)D/d 日 323. * (5)H/h 时 324. * (6)m 分 325. * (7)S/s 秒 326. */ 327.Date.prototype.datePart = function(field) 328.{ 329.if(!field){ 330.field = "d"; 331.} 332.var Week = ["日","一","二","三","四","五","六"]; 333.switch (field){ 334.case "Y" : 335.case "y" :return this.getFullYear();break; 336.case "M" :return (this.getMonth()+1);break; 337.case "W" : 338.case "w" :return Week[this.getDay()];break; 339.case "D" : 340.case "d" :return this.getDate();break; 341.case "H" : 342.case "h" :return this.getHours();break; 343.case "m" :return this.getMinutes();break; 344.case "s" :return this.getSeconds();break; 345.default:return this.getDate(); 346.} 347.return this.getDate(); 348.} 以上这篇javascript中对Date类型的常用操作小结就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持脚本之家。