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On running the above program, we get the following output:
When you click on the “OK” button, with the message “This page says”. Then a new windows appears as shown below:
Lab Assignment ‘n Activity #Interdisciplinary
Write JavaScript code for the following:
1. Display all odd numbers from 39 till 11.
2. Accept 5 numbers from the user and find their average.
3. Accept two numbers from the user. Calculate first number raised to the power of second number.
4. To get the first n Fibonacci numbers.
( Note: the Fibonacci sequence is the series of numbers: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, . . each subsequent
number is the sum of the previous two numbers.) [CBSE Handbook]
The for….in Loop
The for...in statement iterates across an object’s properties. For each property, the code block inside the loop is
executed once. Syntax of the for loop is as follows:
for (i in object) {
block of code to be executed
}
Example:
<HTML>
<BODY>
for..in loop statement
</BR>
<script type = "text/javascript">
var days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday'];
for(const i in days){
372 Touchpad Web Applications-XI

