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The global Infinity property is a numeric value representing infinity.

Property attributes of Infinity
Writable no
Enumerable no
Configurable no

Syntax

Infinity 

Description

Infinity is a property of the global object, i.e. it is a variable in global scope.

The initial value of Infinity is Number.POSITIVE_INFINITY. The value Infinity (positive infinity) is greater than any other number. This value behaves mathematically like infinity; for example, any positive number multiplied by Infinity is Infinity, and anything divided by Infinity is 0.

Per the ECMAScript 5 specification, Infinity is read only (implemented in JavaScript 1.8.5 / Firefox 4).

Examples

console.log(Infinity          ); /* Infinity */  
console.log(Infinity + 1      ); /* Infinity */  
console.log(Math.pow(10, 1000)); /* Infinity */  
console.log(Math.log(0)       ); /* -Infinity */  
console.log(1 / Infinity      ); /* 0 */  

Specifications

Specification Status Comment
ECMAScript 1st Edition (ECMA-262) Standard Initial definition. Implemented in JavaScript 1.3
ECMAScript 5.1 (ECMA-262)
The definition of 'Infinity' in that specification.
Standard  
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Infinity' in that specification.
Standard  
ECMAScript Latest Draft (ECMA-262)
The definition of 'Infinity' in that specification.
Living Standard  

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes Yes Yes Yes Yes Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic support Yes Yes Yes Yes Yes Yes Yes

See also

Tag Dokumen dan Kontributor

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 Terakhir diperbarui oleh: fscholz,