How to compare date in JavaScript [duplicate]

问题

This question already has answers here:

Converting a string to a date in JavaScript (33 answers)

Compare two dates with JavaScript (36 answers)

How do I compare dates in Javascript? (4 answers)

Closed 6 years ago.

I want to compare following to dates i.e. d1 with d2:

var d1 = new Date(12,05,2013);
var d2 = "12/05/2013";

回答1:

convert date to timestamp

DateObject.getTime(); will give timestamp

and convert string to date new Date(d2)

javScript

var d1 = new Date("12/05/2013");
var d2 = "12/05/2013";
console.log(d1.getTime());
console.log(new Date(d2).getTime());

if(d1.getTime() == new Date(d2).getTime()){
   //do something
}

回答2:

To compare two variables you need to use JS operators, consider:

if(d1==d2)
{
 //do this
}

else
{
 //do this
}

More information on logical operators can be found here: http://www.w3schools.com/js/js_comparisons.asp

来源：https://stackoverflow.com/questions/18697888/how-to-compare-date-in-javascript