JavaScirpt Tutorial Index

JavaScript Tutorial Javascript Example Javascript comment Javascript Variable Javascript Data Types Javascript Operators Javascript If Else Javascript Switch Statement Javascript loop JavaScript Function Javascript Object JavaScript Arrays Javascript String Javascript Date Javascript Math Javascript Number Javascript Dialog Box Javascript Window Object Javascript Document Object Javascript Event Javascript Cookies Javascript getElementByID Javascript Forms Validation Javascript Email Validation Javascript Password Validation Javascript Re-Password Validation Javascript Page Redirect Javascript Print

Misc

JavaScript P5.js JavaScript Minify JavaScript redirect URL with parameters Javascript Redirect Button JavaScript Ternary Operator JavaScript radio button checked value JavaScript moment date difference Javascript input maxlength JavaScript focus on input Javascript Find Object In Array JavaScript dropdown onchange JavaScript Console log Multiple variables JavaScript Time Picker Demo JavaScript Image resize before upload Functional Programming in JavaScript JavaScript SetTimeout() JavaScript SetInterval() Callback and Callback Hell in JavaScript Array to String in JavaScript Synchronous and Asynchronous in JavaScript Compare two Arrays in JavaScript Encapsulation in JavaScript File Type Validation while Uploading Using JavaScript or jquery Convert ASCII Code to Character in JavaScript Count Character in string in JavaScript Get First Element of Array in JavaScript How to convert array to set in JavaScript How to get current date and time in JavaScript How to Remove Special Characters from a String in JavaScript Number Validation in JavaScript Remove Substring from String in JavaScript

Interview Questions

JavaScript Interview Questions

Javascript Date

JavaScript Date

In JavaScript Date Object is data type build into the JavaScript language. Data object are created with the new Date(). JavaScript Date instance that represents a single moment in time. JavaScript date object can only be instantiated by calling JavaScript as a constructor. Syntax We can use following syntaxes to create a Date object using Date() constructor.
new Date();  
new Date(value);  
new Date(dateString);  
new Date(year, month, day, hours, minutes, seconds, milliseconds);

NOTE: Parameters in bracket is always optional.

Here descriptions of parameter:

value

It representing the number of milliseconds since 1 January 2017 00:00:00 UTC, with leap seconds ignored.

dataString

String value representing a date. The string should be in a format recognized by the Date.parse()method.

year

Integer value representing the year. Value from 0 to 99 map of the years 2000 to 2099.

month

Integer value representing the month, beginning with 0 for January to 11 for December.

date

Optional. Integer value representing the day of the month.

hours

Optional. Integer value representing the hours of the day.

minutes

Optional. Integer value representing the minute segment of a time.

seconds

Optional. Integer value representing the second segment of a time.

milliseconds

Optional. Integer value representing the millisecond segment of a time. Exmple of Date
<!DOCTYPE html>  
<html>  
<body>  
<script>  
var date=new Date();    
var day=date.getDate();    
var month=date.getMonth()+1;    
var year=date.getFullYear();    
document.write("<br>Date: "+day+"/"+month+"/"+year);    
</script>  
</body>  
</html>
Try Now Output
Date: 27/11/2017
Example of current time
<!DOCTYPE html>  
<html>  
<body>  
Current Time: <span id="txt"></span>  
<script>  
var today=new Date();    
var h=today.getHours();    
var m=today.getMinutes();    
var s=today.getSeconds();    
document.getElementById('txt').innerHTML=h+":"+m+":"+s;    
</script>  
</body>  
</html>
Try Now Output
Current Time: 10:34:50