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Following is the output of the above code:
Lab Assignment ‘n Activity #Interdisciplinary
1. Create JavaScript programs to calculate the following and display the result with appropriate messages:
Area and perimeter of a rectangular lawn
Simple Interest
2. Try the following code snippets and check the output:
document.write( “WELCOME” + “TO” + “ALL”)
document.write (10+12+ “234”)
Comparison Operators
To determine equality or difference between variables or values, comparison operators are utilised in logical statements.
The comparison operators are explained in the table below, assuming x = 8.
Operator Name Description Example Output
== equal to It is used to compare the value of a variable against the x==7 false
value of other variable or directly with some other value. x==8 true
!= not equal It is used to check if two operands being evaluated are x!=8 false
not equal. Then this gives the value true.
> greater than It is used to check whether any expression generates x>8 false
a value greater than other expressions; if so, then the
value would evaluate to true; else false.
< less than It is used to check whether any expression generates a x<8 false
value less than other expressions; if so, then the value
would evaluate to true; else false.
>= greater than or It is used to check whether the left operand is greater x>=8 true
equal to than or equal to the right operand.
<= less than or It is used to check whether the left operand is less than x<=8 true
equal to or equal to the right operand.
=== Triple Equals It is used to compare the equality of two operands with a x===”8” false
data type. If both the value and the data type are equal,
then the condition is true, otherwise false.
Let us create a JavaScript program to use comparison operators.
<!DOCTYPE html>
<HTML>
<HEAD>
338 Touchpad Web Applications-XI

