Phiên bản đầy đủ: jsB@nk » Thời gian » Hợp lệ » Khoảng thời gian giữa hai thời điểm
URL: https://www.javascriptbank.com/date-difference-script.html
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Phiên bản đầy đủ: jsB@nk » Thời gian » Hợp lệ » Khoảng thời gian giữa hai thời điểm
URL: https://www.javascriptbank.com/date-difference-script.html
<script language="JavaScript">// Ronnie T. Moorefunction isValidDate(dateStr) {// Date validation function courtesty of // Sandeep V. Tamhankar ([email protected]) -->// Checks for the following valid date formats:// MM/DD/YY MM/DD/YYYY MM-DD-YY MM-DD-YYYYvar datePat = /^(\d{1,2})(\/|-)(\d{1,2})\2(\d{4})$/; // requires 4 digit yearvar matchArray = dateStr.match(datePat); // is the format ok?if (matchArray == null) {alert(dateStr + " Date is not in a valid format.")return false;}month = matchArray[1]; // parse date into variablesday = matchArray[3];year = matchArray[4];if (month < 1 || month > 12) { // check month rangealert("Month must be between 1 and 12.");return false;}if (day < 1 || day > 31) {alert("Day must be between 1 and 31.");return false;}if ((month==4 || month==6 || month==9 || month==11) && day==31) {alert("Month "+month+" doesn't have 31 days!")return false;}if (month == 2) { // check for february 29thvar isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));if (day>29 || (day==29 && !isleap)) {alert("February " + year + " doesn't have " + day + " days!");return false; }}return true;}function isValidTime(timeStr) {// Time validation function courtesty of // Sandeep V. Tamhankar ([email protected]) -->// Checks if time is in HH:MM:SS AM/PM format.// The seconds and AM/PM are optional.var timePat = /^(\d{1,2}):(\d{2})(:(\d{2}))?(\s?(AM|am|PM|pm))?$/;var matchArray = timeStr.match(timePat);if (matchArray == null) {alert("Time is not in a valid format.");return false;}hour = matchArray[1];minute = matchArray[2];second = matchArray[4];ampm = matchArray[6];if (second=="") { second = null; }if (ampm=="") { ampm = null }if (hour < 0 || hour > 23) {alert("Hour must be between 1 and 12. (or 0 and 23 for military time)");return false;}if (hour <= 12 && ampm == null) {if (confirm("Please indicate which time format you are using. OK = Standard Time, CANCEL = Military Time")) {alert("You must specify AM or PM.");return false; }}if (hour > 12 && ampm != null) {alert("You can't specify AM or PM for military time.");return false;}if (minute < 0 || minute > 59) {alert ("Minute must be between 0 and 59.");return false;}if (second != null && (second < 0 || second > 59)) {alert ("Second must be between 0 and 59.");return false;}return true;}function dateDiff(dateform) {date1 = new Date();date2 = new Date();diff = new Date();if (isValidDate(dateform.firstdate.value) && isValidTime(dateform.firsttime.value)) { // Validates first date date1temp = new Date(dateform.firstdate.value + " " + dateform.firsttime.value);date1.setTime(date1temp.getTime());}else return false; // otherwise exitsif (isValidDate(dateform.seconddate.value) && isValidTime(dateform.secondtime.value)) { // Validates second date date2temp = new Date(dateform.seconddate.value + " " + dateform.secondtime.value);date2.setTime(date2temp.getTime());}else return false; // otherwise exits// sets difference date to difference of first date and second datediff.setTime(Math.abs(date1.getTime() - date2.getTime()));timediff = diff.getTime();weeks = Math.floor(timediff / (1000 * 60 * 60 * 24 * 7));timediff -= weeks * (1000 * 60 * 60 * 24 * 7);days = Math.floor(timediff / (1000 * 60 * 60 * 24)); timediff -= days * (1000 * 60 * 60 * 24);hours = Math.floor(timediff / (1000 * 60 * 60)); timediff -= hours * (1000 * 60 * 60);mins = Math.floor(timediff / (1000 * 60)); timediff -= mins * (1000 * 60);secs = Math.floor(timediff / 1000); timediff -= secs * 1000;dateform.difference.value = weeks + " weeks, " + days + " days, " + hours + " hours, " + mins + " minutes, and " + secs + " seconds";return false; // form should never submit, returns false}// End --></script><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><form onsubmit="return dateDiff(this);"><table><tbody><tr><td><pre>First Date: Date: <input type="text" name="firstdate" value="" size="10" maxlength="10"> (MM/DD/YYYY format) Time: <input type="text" name="firsttime" value="" size="10" maxlength="10"> (HH:MM:SS format)Second Date: Date: <input type="text" name="seconddate" value="" size="10" maxlength="10"> (MM/DD/YYYY format) Time: <input type="text" name="secondtime" value="" size="10" maxlength="10"> (HH:MM:SS format)<input type="submit" value="Calculate Difference!">Date Difference:<br><input type="text" name="difference" value="" size="60"></pre></td></tr></tbody></table></form><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->