تشخیص اینکه یک روز مشخص، چندمین روز هفته بوده است (با javascript)
تنها کافی است که شما سال و ماه و روز مورد نظرتان را مشخص کنید و آنگاه این کد، محاسبه می کند که آن روز، چندمین روز از هفته می باشد (شنبه یا یکشنبه یا ...). همچنین، این کد تشخیص می دهد که آیا آن روز، گذشته است یا خیر :
کدها :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="JavaScript">
var D = "0";
var M = "0";
var Y = "0";
var C = "0";
var B = "0";
var A = "0";
var Day = "0";
var Ending = "0";
var Dayow = new Array();
Dayow[-6] = "Monday";
Dayow[-5] = "Tuesday";
Dayow[-4] = "Wednesday";
Dayow[-3] = "Thursday";
Dayow[-2] = "Friday";
Dayow[-1] = "Saturday";
Dayow[0] = "Sunday";
Dayow[1] = "Monday";
Dayow[2] = "Tuesday";
Dayow[3] = "Wednesday";
Dayow[4] = "Thursday";
Dayow[5] = "Friday";
Dayow[6] = "Saturday";
var mnth = new Array();
mnth[0] = "January";
mnth[1] = "February";
mnth[2] = "March";
mnth[3] = "April";
mnth[4] = "May";
mnth[5] = "June";
mnth[6] = "July";
mnth[7] = "August";
mnth[8] = "September";
mnth[9] = "October";
mnth[10] = "November";
mnth[11] = "December";
function calcul() {
if (document.calculate.mnth.options.value == 0 || document.calculate.day.options.value == 0 || document.calculate.year.value.length == 0) {
alert('Please complete all options');
}
else if (document.calculate.mnth.options.value == 2 && document.calculate.day.options.value == 30 || document.calculate.mnth.options.value == 2 && document.calculate.day.options.value == 31) {
alert('That Month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 4 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 6 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 9 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 11 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else {
calcul2();
}
}
function calcul2() {
D = document.calculate.day.options.value;
M = document.calculate.mnth.options.value;
Y = document.calculate.year.value;
if (M < 3) {
M = ((M / 1) + 12);
Y = (Y - 1);
date2();
}
else {
date2();
}
}
function date2() {
C = (parseInt(Y / 100));
B = (Y - (100 * C));
A = ((parseInt((2.6 * M) - 5.39)) + (parseInt(B / 4)) + (parseInt(C / 4)) + (D / 1) + B - (2 * C));
Day = (A - (7 * (parseInt(A / 7))));
Leap = ((Y / 4) - (parseInt(Y / 4)));
if (Leap != 0 && M >= 3 && A < 0) {
Day =- -Day;
daycalcu();
}
else if (Leap == 0 && M < 3 && A < 0) {
Day = (Day - 2);
daycalcu();
}
else {
daycalcu();
}
}
function daycalcu() {
if (document.calculate.mnth.options.value == 2 && document.calculate.day.options.value == 29 && Leap == 0) {
alert('February does not have '+ document.calculate.day.options.value +' days in '+ document.calculate.year.value +'');
}
else {
appear();
}
}
function appear() {
if (document.calculate.day.options.value == 1 || document.calculate.day.options.value == 21 || document.calculate.day.options.value == 31) {
Ending = "st";
appear2();
}
else if (document.calculate.day.options.value == 2 || document.calculate.day.options.value == 22) {
Ending = "nd";
appear2();
}
else if (document.calculate.day.options.value == 3 || document.calculate.day.options.value == 23) {
Ending = "rd";
appear2();
}
else {
Ending ="th";
appear2();
}
}
function appear2() {
test = new Date();
gdate = test.getDate();
gyear = test.getFullYear();
gmonth = test.getMonth();
E = (gmonth + 1);
D = document.calculate.day.options.value;
M = document.calculate.mnth.options.value;
Y = document.calculate.year.value;
F = (M - 1);
if (gyear == Y && gdate == D && E == M) {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' is a '+ Dayow[Day] +'');
}
else if (gyear < Y || gyear == Y && E < M || gyear == Y && E == M && gdate < D) {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' will be a '+ Dayow[Day] +'');
}
else if (gyear > Y || gyear == Y && E > M || gyear == Y && E == M && gdate > D) {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' was a '+ Dayow[Day] +'');
}
else {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' was a '+ Dayow[Day] +'');
}
}
</script>
</head>
<body>
<form name="calculate">
<select name="day">
<option>Choose Date
<option value="1">1st
<option value="2">2nd
<option value="3">3rd
<option value="4">4th
<option value="5">5th
<option value="6">6th
<option value="7">7th
<option value="8">8th
<option value="9">9th
<option value="10">10th
<option value="11">11th
<option value="12">12th
<option value="13">13th
<option value="14">14th
<option value="15">15th
<option value="16">16th
<option value="17">17th
<option value="18">18th
<option value="19">19th
<option value="20">20th
<option value="21">21st
<option value="22">22nd
<option value="23">23rd
<option value="24">24th
<option value="25">25th
<option value="26">26th
<option value="27">27th
<option value="28">28th
<option value="29">29th
<option value="30">30th
<option value="31">31st
</select>
<select name="mnth">
<option>Choose Month
<option value="1">January
<option value="2">February
<option value="3">March
<option value="4">April
<option value="5">May
<option value="6">June
<option value="7">July
<option value="8">August
<option value="9">September
<option value="10">October
<option value="11">November
<option value="12">December
</select>
<input type=text name="year" size=4 maxlength=4> Year
<br>
<input type=button value="Calculate" onclick="calcul()">
</form>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="JavaScript">
var D = "0";
var M = "0";
var Y = "0";
var C = "0";
var B = "0";
var A = "0";
var Day = "0";
var Ending = "0";
var Dayow = new Array();
Dayow[-6] = "Monday";
Dayow[-5] = "Tuesday";
Dayow[-4] = "Wednesday";
Dayow[-3] = "Thursday";
Dayow[-2] = "Friday";
Dayow[-1] = "Saturday";
Dayow[0] = "Sunday";
Dayow[1] = "Monday";
Dayow[2] = "Tuesday";
Dayow[3] = "Wednesday";
Dayow[4] = "Thursday";
Dayow[5] = "Friday";
Dayow[6] = "Saturday";
var mnth = new Array();
mnth[0] = "January";
mnth[1] = "February";
mnth[2] = "March";
mnth[3] = "April";
mnth[4] = "May";
mnth[5] = "June";
mnth[6] = "July";
mnth[7] = "August";
mnth[8] = "September";
mnth[9] = "October";
mnth[10] = "November";
mnth[11] = "December";
function calcul() {
if (document.calculate.mnth.options.value == 0 || document.calculate.day.options.value == 0 || document.calculate.year.value.length == 0) {
alert('Please complete all options');
}
else if (document.calculate.mnth.options.value == 2 && document.calculate.day.options.value == 30 || document.calculate.mnth.options.value == 2 && document.calculate.day.options.value == 31) {
alert('That Month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 4 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 6 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 9 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else if (document.calculate.mnth.options.value == 11 && document.calculate.day.options.value == 31) {
alert('That month does not have '+ document.calculate.day.options.value +' days');
}
else {
calcul2();
}
}
function calcul2() {
D = document.calculate.day.options.value;
M = document.calculate.mnth.options.value;
Y = document.calculate.year.value;
if (M < 3) {
M = ((M / 1) + 12);
Y = (Y - 1);
date2();
}
else {
date2();
}
}
function date2() {
C = (parseInt(Y / 100));
B = (Y - (100 * C));
A = ((parseInt((2.6 * M) - 5.39)) + (parseInt(B / 4)) + (parseInt(C / 4)) + (D / 1) + B - (2 * C));
Day = (A - (7 * (parseInt(A / 7))));
Leap = ((Y / 4) - (parseInt(Y / 4)));
if (Leap != 0 && M >= 3 && A < 0) {
Day =- -Day;
daycalcu();
}
else if (Leap == 0 && M < 3 && A < 0) {
Day = (Day - 2);
daycalcu();
}
else {
daycalcu();
}
}
function daycalcu() {
if (document.calculate.mnth.options.value == 2 && document.calculate.day.options.value == 29 && Leap == 0) {
alert('February does not have '+ document.calculate.day.options.value +' days in '+ document.calculate.year.value +'');
}
else {
appear();
}
}
function appear() {
if (document.calculate.day.options.value == 1 || document.calculate.day.options.value == 21 || document.calculate.day.options.value == 31) {
Ending = "st";
appear2();
}
else if (document.calculate.day.options.value == 2 || document.calculate.day.options.value == 22) {
Ending = "nd";
appear2();
}
else if (document.calculate.day.options.value == 3 || document.calculate.day.options.value == 23) {
Ending = "rd";
appear2();
}
else {
Ending ="th";
appear2();
}
}
function appear2() {
test = new Date();
gdate = test.getDate();
gyear = test.getFullYear();
gmonth = test.getMonth();
E = (gmonth + 1);
D = document.calculate.day.options.value;
M = document.calculate.mnth.options.value;
Y = document.calculate.year.value;
F = (M - 1);
if (gyear == Y && gdate == D && E == M) {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' is a '+ Dayow[Day] +'');
}
else if (gyear < Y || gyear == Y && E < M || gyear == Y && E == M && gdate < D) {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' will be a '+ Dayow[Day] +'');
}
else if (gyear > Y || gyear == Y && E > M || gyear == Y && E == M && gdate > D) {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' was a '+ Dayow[Day] +'');
}
else {
alert('The '+ document.calculate.day.options.value + Ending +' of '+ mnth[F] +' '+ document.calculate.year.value +' was a '+ Dayow[Day] +'');
}
}
</script>
</head>
<body>
<form name="calculate">
<select name="day">
<option>Choose Date
<option value="1">1st
<option value="2">2nd
<option value="3">3rd
<option value="4">4th
<option value="5">5th
<option value="6">6th
<option value="7">7th
<option value="8">8th
<option value="9">9th
<option value="10">10th
<option value="11">11th
<option value="12">12th
<option value="13">13th
<option value="14">14th
<option value="15">15th
<option value="16">16th
<option value="17">17th
<option value="18">18th
<option value="19">19th
<option value="20">20th
<option value="21">21st
<option value="22">22nd
<option value="23">23rd
<option value="24">24th
<option value="25">25th
<option value="26">26th
<option value="27">27th
<option value="28">28th
<option value="29">29th
<option value="30">30th
<option value="31">31st
</select>
<select name="mnth">
<option>Choose Month
<option value="1">January
<option value="2">February
<option value="3">March
<option value="4">April
<option value="5">May
<option value="6">June
<option value="7">July
<option value="8">August
<option value="9">September
<option value="10">October
<option value="11">November
<option value="12">December
</select>
<input type=text name="year" size=4 maxlength=4> Year
<br>
<input type=button value="Calculate" onclick="calcul()">
</form>
</body>
</html>
دسته بندی کدهای آماده برای محاسبه گرها
نویسنده علیرضا گلمکانی
شماره کلید 708
گزینه ها 
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