The Number
type is the reference
type for numeric values.
To create a Number object, use the
Number
constructor and pass in any number.
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var numberObject = new Number(10);
document.writeln(numberObject);
</script>
</head><!--from ww w .ja va 2 s. com-->
<body>
</body>
</html>
Property | Description |
---|---|
MAX_VALUE | Get the largest number possible in JavaScript |
MIN_VALUE | Get the smallest number possible in JavaScript |
NEGATIVE_INFINITY | Get negative infinity |
NaN | Represents a Not-a-Number value |
POSITIVE_INFINITY | Represents infinity |
prototype | Allows you to add properties and methods to an object |
Method | Description |
---|---|
toExponential(x) | Converts a number into an exponential notation |
toFixed(x) | Formats a number with x numbers of digits after the decimal point |
toPrecision(x) | Formats a number to x length |
toString() | Converts a number to a string |
valueOf() | Returns the primitive value of a number |