Javascript Reference - JavaScript Date valueOf() Method
The valueOf() method returns
the milliseconds representation of the date
as the number of millisecond since midnight January 1, 1970 UTC.
Browser Support
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valueOf() |
Yes | Yes | Yes | Yes | Yes |
Syntax
dateObject.valueOf();
Parameters
None.
Return Value
A number representing the number of milliseconds between the date object and midnight January 1, 1970 UTC
Example
var date1 = new Date(2007, 0, 1); //"January 1, 2007"
var date2 = new Date(2007, 1, 1); //"February 1, 2007"
console.log(date1.valueOf());
console.log(date2.valueOf());
The code above generates the following result.
Example 2
< and > calls valueOf method during the comparison.
var date1 = new Date(2007, 0, 1); //"January 1, 2007"
var date2 = new Date(2007, 1, 1); //"February 1, 2007"
console.log(date1 < date2); //true
console.log(date1 > date2); //false
The code above generates the following result.
Example 3
+ sign converts Date value to millisecond.
var stop = + new Date();
console.log(stop);
The code above generates the following result.
