?? get-time-between.js
字號(hào):
function getTimeBetween(from, until)
{
var past = from == '' ? new Date() : new Date(from);
var future = until == '' ? new Date() : new Date(until);
if (past >= future)
{
var tmp = past;
past = future;
future = tmp;
}
var between = [
future.getFullYear() - past.getFullYear(),
future.getMonth() - past.getMonth(),
future.getDate() - past.getDate()
];
if (between[2] < 0)
{
between[1]--;
var ynum = future.getFullYear();
var mlengths = [
31,
(ynum % 4 == 0 && ynum % 100 != 0 || ynum % 400 == 0) ? 29 : 28,
31, 30, 31, 30, 31, 31, 30, 31, 30, 31
];
var mnum = future.getMonth() - 1;
if (mnum < 0) { mnum += 12; }
between[2] += mlengths[mnum];
}
if (between[1] < 0)
{
between[0]--;
between[1] += 12;
}
return between;
}
function getDayName(thedate)
{
var dnames = ['Sunday', 'Monday', 'Tuesday', 'Wednesday',
'Thursday', 'Friday', 'Saturday', 'Sunday'];
var today = new Date(thedate);
return dnames[today.getDay()];
}
function dateInSomeDays(n)
{
var today = new Date();
var seconds = today.getTime();
seconds += n * 86400000;
return new Date(seconds);
}
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