Javascript Basics MCQ Quiz in বাংলা - Objective Question with Answer for Javascript Basics - বিনামূল্যে ডাউনলোড করুন [PDF]
Last updated on Mar 19, 2025
Latest Javascript Basics MCQ Objective Questions
Top Javascript Basics MCQ Objective Questions
Javascript Basics Question 1:
Which of the following is suitable tag for java script in HTML?
Answer (Detailed Solution Below)
Javascript Basics Question 1 Detailed Solution
The HTML < script > tag is used to embed or reference a client-side script such as JavaScript. This tag is also commonly referred to as the < script > element.
Syntax
There are two ways that you can use the
Answer (Detailed Solution Below)
Javascript Basics Question 2 Detailed Solution
JavaScript was created to make webpages. Programs in the language are known as scripts. These scripts are executed as plain text. JavaScript has full integration with HTML/CSS.
JavaScript programs are inserted into any part of the HTML document with the help of
Javascript Basics Question 3:
Which of the following attributes of text-box control, allow to limit the maximum character?
Answer (Detailed Solution Below)
Javascript Basics Question 3 Detailed Solution
In HTML, the max length attribute specifies the maximum number of characters allowed in the element. The default value is 524288.
Syntax:
Value is the maximum number of characters allowed in the element.Javascript Basics Question 4:
Which of the following dialog boxes is used to give warning message to the users?
Answer (Detailed Solution Below)
Javascript Basics Question 4 Detailed Solution
Javascript Basics Question 5:
What is the correct CSS code for adding a background color?
Answer (Detailed Solution Below)
Javascript Basics Question 5 Detailed Solution
CSS syntax:
|
Colour(options) |
Example |
Description |
|
ccolour_name |
Red |
Name of colour |
|
hex_number |
#ff0000 |
Hexadecimal colour code |
|
Rgb_number |
rgb(255,36,0) |
rgb colour code |
Javascript Basics Question 6:
What is the output of the below code?
var x=21;
if(x > 23) {
document.write(22);
}
else {
document.write(x);
}
Answer (Detailed Solution Below)
Javascript Basics Question 6 Detailed Solution
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
}
Javascript Basics Question 7:
In VB Script, which of the following function return the date for a specified year, month, and day?
Answer (Detailed Solution Below)
Javascript Basics Question 7 Detailed Solution
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
Javascript Basics Question 8:
What is the proper syntax when using a message dialog box?
Answer (Detailed Solution Below)
Javascript Basics Question 8 Detailed Solution
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
Javascript Basics Question 9:
Node.js uses _____ on the server.
Answer (Detailed Solution Below)
Javascript Basics Question 9 Detailed Solution
- 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
Javascript Basics Question 10:
What is the output of the following program?
#include
using namespace std;
class OS
{
public:
void display()
{
cout << "Operating System\t";
}
};
class Windows: public OS
{
public:
void display()
{
cout << "Windows\t";
OS::display();
}
};
int main()
{
Windows w;
w.display();
}
Answer (Detailed Solution Below)
Javascript Basics Question 10 Detailed Solution
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.