js写距离生日还有多少天
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var daysTotal = 0;
var birthday ="2000-10-01";
daysTotal = 0;
var year = date.getFullYear();//当前年份
var _month = date.getMonth() + 1;//当前月份
var _day =date.getDate();//当前天数
var month = parseInt(<span style="font-size: 13.3333px;">birthday</span>.split('-')[1]);//生日月份
var day = parseInt(<span style="font-size: 13.3333px;">birthday</span>.split('-')[2]);//生日天数
if (month > _month)
{
for (var j = _month; j < month; j++)
{
daysTotal = TotalDays(year, j, daysTotal);
}
daysTotal = daysTotal + day - _day;
} else if (month < _month) {
for (var k = month; k < _month; k++) {
daysTotal = TotalDays(year,k, daysTotal);
}
var dayFull = TotalDays(year, 0, daysTotal);
daysTotal = dayFull - daysTotal + day - _day;
} else
{
if (day >= _day) {
daysTotal = day - _day;
} else
{
daysTotal = TotalDays(year, 0, daysTotal) - (_day - day);
}
}
AI写代码 //JS判断闰年代码
function isLeapYear(Year) {
if (((Year % 4) == 0) && ((Year % 100) != 0) || ((Year % 400) == 0)) {
return (true);
} else { return (false); }
}
function TotalDays(year,month,days)
{
switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
days += 31;
break;
case 4:
case 6:
case 9:
case 11:
days += 30;
break;
case 2:
if (isLeapYear(year)) {
days += 29;
} else {
days += 28;
}
break;
default:
if (isLeapYear(year)) {
days = 366;
} else {
days = 365;
}
break;
}
return days;
}
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