Number Object Overview
The Number object is an object wrapper for primitive numeric values.
Creating a Number Object
To create a Number object, use the new keyword and assign the result to a variable.
The following example creates a Number object named 'myNumber':
var myNumber = new Number(value);Note: If the value parameter cannot be converted into a number, it returns NaN (Not-a-Number).
Properties
| Property | Description |
|---|---|
constructor |
Returns the function that created the object's prototype |
MAX_VALUE |
Returns the largest number possible in JavaScript |
MIN_VALUE |
Returns the smallest number possible in JavaScript |
NEGATIVE_INFINITY |
Represents negative infinity (returned on overflow) |
POSITIVE_INFINITY |
Represents infinity (returned on overflow) |
prototype |
Allows addition of properties and methods to an object |
Methods
| 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 object to a string |
valueOf() |
Returns the primitive value of a Number object |