NCERT Book Class 11 Computers and Communication Technology Client Side Scripting Using JavaScript

CLIENT-SIDE SCRIPTING USING JAVASCRIPT

EXERCISES

SHORT ANSWER TYPE QUESTIONS

1. Is it possible to write programs for standalone applications in JavaScript?

2. Where should we use semicolon in the statements? Is it mandatory?

3. Differentiate between client-side and server-side JavaScript?

4. What is the purpose of document.write() in JavaScript code?

5. What are the invalid variable names in following? Explain with reasons. My_Name, number10, $100, father’s name, marks%

6. What are reserved words? Can we use reserved words as identifiers?

7. What do you mean by literals?

8. What are the data types in JavaScript?

9. What is the purpose of var statement?

LONG ANSWER TYPE QUESTIONS

1. Write a JavaScript program to find out whether the given year is leap or not. Use prompt box for input the year.

2. Write a program to find the greatest number among three given numbers?

3. Write a program using switch statement to print word equivalent of a number from 0 to 9, e.g. 3 should be displayed as “Three”.

4. Write a statement that displays an alert box which looks like this :

5. Write a program to find the reverse of a number (i.e. reverse of 123 is 321)

6. Write a program to convert a decimal number into a binary number.

7. Write a program to check whether a number is palindrome or not. A number is palindrome if it is equal to its reverse number.

8. Using continue display the odd numbers between 1 to 20.

9. Write a program to find sum of digits of a number, e.g. 453 results 4+5+3=12.

10. Write a program to generate prime numbers up to a specific limit.

11. What will be the output of the following JavaScript code?

for(i=1; i<=5; i++)

{

    document.write(“<BR>”)

         for(j=1; j<=i; j++)

             document.write(“*”)

}

Please refer to attached file for NCERT Class 11 Computers and Communication Technology Client-Side Scripting Using JavaScript