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JavaScript•Working with Data

JavaScript Number Properties

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JavaScript Number Properties

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Number Properties

Number.EPSILON Number.MAX_VALUE Number.MIN_VALUE Number.MAX_SAFE_INTEGER Number.MIN_SAFE_INTEGER Number.POSITIVE_INFINITY Number.NEGATIVE_INFINITY Number.NaN

Numbers Tutorial

Number Methods

Number Reference

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 » 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 »

Minimum and Maximum Safe Integers

ES6 added max and min properties to the Number object: Number.MAX_SAFE_INTEGER Number.MIN_SAFE_INTEGER JavaScript MIN_SAFE_INTEGER Number.MIN_SAFE_INTEGER represents the minimum safe integer in JavaScript. Number.MIN_SAFE_INTEGER

Formula

is - (2

53 - 1).

Example

let x = Number.MIN_SAFE_INTEGER;

Try it Yourself » JavaScript MAX_SAFE_INTEGER Number.MAX_SAFE_INTEGER represents the maximum safe integer in JavaScript. Number.MAX_SAFE_INTEGER is (2 53 - 1).

Example

let x = Number.MAX_SAFE_INTEGER;

Try it Yourself » 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 »

Formula

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 »

Formula

Trying to do arithmetic with a non - numeric string will result in

NaN

(Not a

Number):

let x = 100 / "Apple";

Formula

Safe integers are all integers from - (2

Formula

- 1) to + (2

53 - 1). This is safe: 9007199254740991. This is not safe: 9007199254740992.

Complete JavaScript Reference

For a complete reference to all JavaScript properties and methods, with full descriptions and many examples, go to: W3Schools' Full JavaScript Reference. The reference inludes all JavaScript updates from 1999 to 2025.

JavaScript String Methods

JavaScript Get Date Methods

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Learn/JavaScript/Working with Data

JavaScript•Working with Data

JavaScript Number Properties

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