Tutorials References Exercises Videos Menu
Create Website Get Certified Upgrade
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP BOOTSTRAP HOW TO W3.CSS C C++ C# REACT R JQUERY DJANGO TYPESCRIPT NODEJS MYSQL

JS Tutorial

JS HOME JS Introduction JS Where To JS Output JS Statements JS Syntax JS Comments JS Variables JS Let JS Const JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Events JS Strings JS String Methods JS String Search JS String Templates JS Numbers JS BigInt JS Number Methods JS Number Properties JS Arrays JS Array Methods JS Array Sort JS Array Iteration JS Array Const JS Dates JS Date Formats JS Date Get Methods JS Date Set Methods JS Math JS Random JS Booleans JS Comparisons JS If Else JS Switch JS Loop For JS Loop For In JS Loop For Of JS Loop While JS Break JS Iterables JS Sets JS Maps JS Typeof JS Type Conversion JS Bitwise JS RegExp JS Precedence JS Errors JS Scope JS Hoisting JS Strict Mode JS this Keyword JS Arrow Function JS Classes JS Modules JS JSON JS Debugging JS Style Guide JS Best Practices JS Mistakes JS Performance JS Reserved Words

JS Versions

JS Versions JS 2009 (ES5) JS 2015 (ES6) JS 2016 JS 2017 JS 2018 JS 2019 JS 2020 JS 2021 JS IE / Edge JS History

JS Objects

Object Definitions Object Properties Object Methods Object Display Object Accessors Object Constructors Object Prototypes Object Iterables Object Sets Object Maps Object Reference

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

JS Window JS Screen JS Location JS History JS Navigator JS Popup Alert JS Timing JS Cookies

JS Web APIs

Web API Intro Web Forms API Web History API Web Storage API Web Worker API Web Fetch API Web Geolocation API

JS AJAX

AJAX Intro AJAX XMLHttp AJAX Request AJAX Response AJAX XML File AJAX PHP AJAX ASP AJAX Database AJAX Applications AJAX Examples

JS JSON

JSON Intro JSON Syntax JSON vs XML JSON Data Types JSON Parse JSON Stringify JSON Objects JSON Arrays JSON Server JSON PHP JSON HTML JSON JSONP

JS vs jQuery

jQuery Selectors jQuery HTML jQuery CSS jQuery DOM

JS Graphics

JS Graphics JS Canvas JS Plotly JS Chart.js JS Google Chart JS D3.js

JS Examples

JS Examples JS HTML DOM JS HTML Input JS HTML Objects JS HTML Events JS Browser JS Editor JS Exercises JS Quiz JS Certificate

JS References

JavaScript Objects HTML DOM Objects


JavaScript Number Properties

❮ Previous Next ❯
Property Description
EPSILON The difference between 1 and the smallest JS number.
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 represents the difference between 1 and the smallest floating point number.

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.

❮ Previous Next ❯