HTML and CSS Reference

In-Depth Information

Comparing Numbers.
When the comparison operators are used to compare num-

bers, numeric values are compared; as in, is
50 > 45
? A Boolean value of either
true
or

false
is returned.

Table 5.9
Comparison Operators

Example

How Operator Compares Numbers

x
>
y

x
is greater than
y

x
>=
y

x
is greater than or equal to
y

x
<
y

x
is less than
y

x
<=
y

x
is less than or equal to
y

EXAMPLE
5.6

<html>

<head>

<title>Comparing Numbers</title>

</head>

<body>

<h3>

1

<script type = "text/javascript">

2

var x = 5;

var y = 4;

3

var result = x > y;

4

document.writeln("The result is "+
result
+ ".<br />");

5

result = x < y;

6

document.writeln( "The result is " +
result
+ ".<br />");

7

</script>

</h3>

</body>

</html>

EXPLANATION

1

The JavaScript program starts here.

2

The variables x and
y
are assigned values to be compared later in the program.

3

If the value of
x
is greater than the value of
y
, a Boolean value of either
true
or
false

is returned and assigned to the variable
result
.

4

The Boolean result of the comparison is displayed by the browser. It is
true
;
x
is

greater than
y
.