What is the Date object?
This article introduces you what the Date object is, the content is very detailed, interested friends can refer to, hope to be helpful to you.
Type uses the number of milliseconds that have elapsed since midnight (00:00) on January 1, 1970, UTC (Coordinated Universal Time, International coordinated time) to save the date. The date saved by the Date type can be accurate to 285,616 years before or after January 1, 1970.
How do I use the Date object?
First, you need to get the Date object.
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Var d=new Date ()
When the date object is generated, the current time is returned by default without passing any parameters
Var d=new Date ('2015Uniqqq2')
In the case of passing in parameters, what is obtained is the passed time
Note: this parameter is a string.
Some methods:
1.d.getFullYear () gets the current year. | d.setFullYear (2012) returns the number of milliseconds from January 1, 1970 to the set time |
2.d.getMonth () gets the current month (Note: a small BUG, the current month starts at 0) | | d.setMonth (9) returns the number of milliseconds of the set month from January 1, 1970 to the current year.
3.d.getDate () gets the current date | | d.setDate () same as above
4. When getHours () is obtained
GetMinutes () get minutes
GetSeconds () get seconds
The time acquired by each machine varies because the method returns the local time; it is not international standard time
5. Modification of date
Date.parse ("2015-08-24"); get the number of milliseconds from 1970 to the set time
D.getTime (); gets the milliseconds from 1970 to the current time
D.setTime ()
New Date (time)
Create a date object and specify the number of milliseconds at a specified time
Or modify the time property, var d = new Date (); d.setTime (56521211021)
Case study:
1. Format the date
two。 Get the number of days in a month:
3 、. Calculate the date difference
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