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JavaScript Number Object
Number Object
The Number object is an object wrapper for primitive numeric values.
Number objects are created with new Number().
Syntax
var num = new Number(value);
Note: If the value parameter cannot be converted into a number, it returns NaN (Not-a-Number).
Number Object Properties
| Property | Description |
|---|---|
| constructor | Returns the function that created the Number 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) |
| NaN | Represents a "Not-a-Number" value |
| POSITIVE_INFINITY | Represents infinity (returned on overflow) |
| prototype | Allows you to add properties and methods to an object |
Number 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 |
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