js Instructions for using = and = date functions (assignment operator)_javascript skills

WBOY

Release： 2016-05-16 17:59:19

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var s= newDate();
The explanation is as follows: = does not exist;
new Date() is a thing;
is equivalent to .valueOf();
I will add .getTime after seeing the reply. ()This also gets the number of milliseconds

Copy code The code is as follows:

 
//4 results The same returns the number of milliseconds of the current time 
alert( new Date()); 
alert( new Date); 
var s=new Date(); 
alert(s.valueOf()); 
alert(s.getTime()); 

Comes with js for various usages of getting time:
http://www.jb51.net/article/28910. htm

Copy code The code is as follows:

 
var myDate = new Date (); 
var a=myDate.toLocaleString( ); 
2011-11-07 18:13:56 

By the way, another usage of valueOf:

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

If the object on which this method is called is not a Boolean, a TypeError exception is thrown.

Copy code The code is as follows:

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

Other usage:http://www.jb51.net/w3school/js/jsref_valueof_math.htm

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