Page 187 - Computer Software Application TP - Volume 1

COMPUTER SOFTWARE APPLICATION - CITS

1 Create a JavaScript function that takes two parameters, numerator and denominator, and attempts to divide
numerator by denominator inside a try block. Use a catch block to handle any division by zero errors and log
an appropriate error message.
2 Create a JavaScript program that attempts to execute a non-existent function inside a try block. Use a catch
block to handle the error and log a message indicating that the function does not exist.

3 Create a JavaScript function named calculateFactorial that takes a parameter num and calculates the factorial
of the number. Use a try-catch block to handle the scenario where num is a negative integer. If num is negative,
throw an error with an appropriate message.
4 Write a JavaScript program that prompts the user to enter their age. Use a try-catch block to validate that the
entered age is a positive integer. If the age is not valid, throw an error with a custom message.
5 Write a JavaScript program that attempts to access a property of an undefined object inside a try block. Use a
catch block to handle the error and log a custom error message to the console. Include a finally block to show
some message, regardless of whether an error occurred or not.

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CITS : IT & ITES - Computer Software Application - Exercise 45