var s=+newdate ();

var s=+newdate ();

The explanation is as follows: =+ does not exist;

+new Date () is a thing;

+ equivalent to. valueof ();

See the reply to Add. GetTime () This is also the number of milliseconds

Returns the number of milliseconds for the current time as 4 results
Alert (+new Date ());
Alert (+new Date);
var s=new Date ();
Alert (s.valueof ());

Alert (S.gettime ());

The various uses of getting time from JS:

Http://www.cnblogs.com/0banana0/archive/2011/05/25/2056614.html

var mydate = new Date ();

2011-11-07 18:13:56

By the way, another use of valueof:

The valueof () method returns the original value of a Boolean object.

If the object calling the method is not a Boolean, an exception typeerror is thrown.

var boo = new Boolean (false);
document.write (Boo.valueof ());