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JS Tutorial

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JS Functions

Function Definitions Function Parameters Function Invocation Function Call Function Apply Function Bind Function Closures

JS Classes

Class Intro Class Inheritance Class Static

JS Async

JS Callbacks JS Asynchronous JS Promises JS Async/Await

JS HTML DOM

DOM Intro DOM Methods DOM Document DOM Elements DOM HTML DOM Forms DOM CSS DOM Animations DOM Events DOM Event Listener DOM Navigation DOM Nodes DOM Collections DOM Node Lists

JS Browser BOM

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JS References

JavaScript Objects HTML DOM Objects


JavaScript Number Properties


Property Description
EPSILON The difference between 1 and the smallest number > 1.
MAX_VALUE The largest number possible in JavaScript
MIN_VALUE The smallest number possible in JavaScript
MAX_SAFE_INTEGER The maximum safe integer (253 - 1)
MIN_SAFE_INTEGER The minimum safe integer -(253 - 1)
POSITIVE_INFINITY Infinity (returned on overflow)
NEGATIVE_INFINITY Negative infinity (returned on overflow)
NaN A "Not-a-Number" value

JavaScript EPSILON

Number.EPSILON is the difference between the smallest floating point number greater than 1 and 1.

Example

let x = Number.EPSILON;
Try it Yourself »

Note

Number.EPSILON is an ES6 feature.

It does not work in Internet Explorer.


JavaScript MAX_VALUE

Number.MAX_VALUE is a constant representing the largest possible number in JavaScript.

Example

let x = Number.MAX_VALUE;
Try it Yourself »

Number Properties Cannot be Used on Variables

Number properties belong to the JavaScript Number Object.

These properties can only be accessed as Number.MAX_VALUE.

Using x.MAX_VALUE, where x is a variable or a value, will return undefined:

Example

let x = 6;
x.MAX_VALUE
Try it Yourself »

JavaScript MIN_VALUE

Number.MIN_VALUE is a constant representing the lowest possible number in JavaScript.

Example

let x = Number.MIN_VALUE;
Try it Yourself »

JavaScript MAX_SAFE_INTEGER

Number.MAX_SAFE_INTEGER represents the maximum safe integer in JavaScript.

Number.MAX_SAFE_INTEGER is (253 - 1).

Example

let x = Number.MAX_SAFE_INTEGER;
Try it Yourself »

JavaScript MIN_SAFE_INTEGER

Number.MIN_SAFE_INTEGER represents the minimum safe integer in JavaScript.

Number.MIN_SAFE_INTEGER is -(253 - 1).

Example

let x = Number.MIN_SAFE_INTEGER;
Try it Yourself »

Note

MAX_SAFE_INTEGER and MIN_SAFE_INTEGER are ES6 features.

They do not work in Internet Explorer.



JavaScript POSITIVE_INFINITY

Example

let x = Number.POSITIVE_INFINITY;
Try it Yourself »

POSITIVE_INFINITY is returned on overflow:

let x = 1 / 0;
Try it Yourself »

JavaScript NEGATIVE_INFINITY

Example

let x = Number.NEGATIVE_INFINITY;
Try it Yourself »

NEGATIVE_INFINITY is returned on overflow:

let x = -1 / 0;
Try it Yourself »

JavaScript NaN - Not a Number

NaN is a JavaScript reserved word for a number that is not a legal number.

Examples

let x = Number.NaN;
Try it Yourself »

Trying to do arithmetic with a non-numeric string will result in NaN (Not a Number):

let x = 100 / "Apple";

Try it Yourself »

Complete JavaScript Number Reference

For a complete Number reference, visit our:

Complete JavaScript Number Reference.

The reference contains descriptions and examples of all Number properties and methods.

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