JavaScript Number class has helper methods for number processing.
| Property | Description |
| Number constructor Property | In JavaScript, the constructor property returns the constructor function for an object. |
| Number MAX_VALUE Property | The MAX_VALUE property returns the largest number possible in JavaScript. |
| Number MIN_VALUE Property | The MIN_VALUE property returns the smallest positive number possible in JavaScript. |
| Number NEGATIVE_INFINITY Property | The NEGATIVE_INFINITY property represents negative infinity. |
| Number NaN Property | The NaN property represents "Not-a-Number" value. This property indicates that a value is not a legal number. |
| Number POSITIVE_INFINITY Property | The POSITIVE_INFINITY property represents positive infinity. |
| Number prototype Property | The prototype constructor can add new properties and methods to JavaScript Number class. |
| Method | Description |
| Number isFinite() Method | The Number.isFinite() method returns whether a value is a finite number. |
| Number isInteger() Method | The Number.isInteger() method determines whether a value an integer. |
| Number isNaN() Method | The Number.isNaN() method determines whether a value is NaN (Not-A-Number). |
| Number isSafeInteger() Method | The Number.isSafeInteger() method determines whether a value is a safe integer. |
| Number toExponential() Method | The toExponential() method converts a number into an exponential notation. |
| Number toFixed() Method | The toFixed() method converts a number into a string keeping a specified number of decimals. |
| Number toPrecision() Method | The toPrecision() method formats a number to a specified length. |
| Number toString() Method | The toString() method converts a number to a string. |
| Number valueOf() Method | The valueOf() method returns the primitive value of a number. |