Javascript Basics MCQ Quiz in বাংলা - Objective Question with Answer for Javascript Basics - বিনামূল্যে ডাউনলোড করুন [PDF]

In HTML, the max length attribute specifies the maximum number of characters allowed in the element. The default value is 524288.

Syntax:

CSS syntax:

The "if-else" is one of the conditional statements available in JavaScript like several other languages.

Code:

int x=21;  

if(x > 23) {   /false

document.write(22);  

} 

else {              

document.write(x);  / It will be executed

}

Following are the Date Function used in VB Script 

CDate - Converts a valid date and time expression to the variant of subtype Date

Date - Returns the current system date

DateAdd - Returns a date to which a specified time interval has been added

DateSerial - Return the date for a specified year, month, and day

Therefore Option 4 is correct

A message box is a special dialog box used to display a piece of information to the user. To support message boxes, the Visual Basic language provides a function named MsgBox.

Syntax:

MsgBox(Message)

To create a message box using the .NET Frameworkwe use Show() method of the MessageBox class using the following formula:

MessageBox.Show(Message)

Therefore Option 1 is correct

• Node.js is an open source server environment
• Node.js is free
• Node.js runs on various platforms like Windows, Linux, Unix, Mac etc.
• Node.js uses JavaScript on the server

The above code implements a function overriding concept. When an object of the derived class is created (i.e. w) and call the member function(display ()), the member function of the derived class is invoked and the function of the base class is ignored. After invoking the display () method of class windows, it will print ‘windows’. Now at OS :: display() overridden function of base class i.e. display() method of class OS will get executed. Hence it will print Operating system.

Output: Windows Operating System.

Note:- For better understanding try to run the above program.