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11th Standard English Medium Computer Applications Subject JavaScript Functions Creative 2 Mark Questions with Solution

Published on: 03/07/2021

QB365 provides detailed and simple solution for every Creative Questions in class 11 Computer Applications Subject. It will helps to get more idea about question pattern in every Creative questions with solution.

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Std: 11th Standard - Computer Applications

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

List some pre-defined functions

What is pre-defined function?

What do you mean by parameterized function?

What are the rules followed while defining functions in JavaScript?

What are the two types of functions supports by JavaScript?

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Answers Key:

Generic 2

5 x 2 = 10

The following are pre-defined functions in JavaScript.
1. isNaN ( )
2. toUpperCase( )
3. toLowerCase( )
4. length( )
5. alertt( )
6. promptt ( )
7. write( )

Pre-defined functions:
Pre-defined functions are already defined in the JavaScript library which are also called Library functions.

A parameterized function definition may include a list of identifiers, known as parameters that work as local variables for the body of the function. Function invocations provide values or arguments for the function's parameters.

The function-name is any valid identifier.
(i) For Example: sum
(ii) The parameter list contains one or more valid variable name.
(iii) Parameter list contains more than one variable then comma must be there between the variable.
(iv) The function body must be enclosed by braces.

JavaScript supports two types functions. They are
(i) Pre-defined or Library Functions.
(ii) User-defined Functions.