isInfinite

Test if a value is an infinite number.

Installation

npm install @stdlib/assert-is-infinite

Alternatively,

• To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch.
• If you are using Deno, visit the deno branch.
• For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch.

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

Usage

var isInfinite = require( '@stdlib/assert-is-infinite' );

isInfinite( value )

Tests if a value is an infinite number.

var Number = require( '@stdlib/number-ctor' );

var bool = isInfinite( 1.0/0.0 );
// returns true

bool = isInfinite( new Number( 1.0/0.0 ) );
// returns true

bool = isInfinite( 1.0 );
// returns false

bool = isInfinite( null );
// returns false

isInfinite.isPrimitive( value )

Tests if a value is a primitive number having an infinite value.

var Number = require( '@stdlib/number-ctor' );

var bool = isInfinite.isPrimitive( -1.0/0.0 );
// returns true

bool = isInfinite.isPrimitive( new Number( -1.0/0.0 ) );
// returns false

isInfinite.isObject( value )

Tests if a value is a Number object having an infinite value.

var Number = require( '@stdlib/number-ctor' );

var bool = isInfinite.isObject( 1.0/0.0 );
// returns false

bool = isInfinite.isObject( new Number( 1.0/0.0 ) );
// returns true

Examples

var Number = require( '@stdlib/number-ctor' );
var isInfinite = require( '@stdlib/assert-is-infinite' );

var bool = isInfinite( 1.0/0.0 );
// returns true

bool = isInfinite( -1.0/0.0 );
// returns true

bool = isInfinite( new Number( 1.0/0.0 ) );
// returns true

bool = isInfinite( -5.0 );
// returns false

bool = isInfinite( 0.0 );
// returns false

bool = isInfinite( 5.256 );
// returns false

bool = isInfinite( '1.0/0.0' );
// returns false

bool = isInfinite( null );
// returns false

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See Also

• @stdlib/assert-is-finite: test if a value is a finite number.

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Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2023. The Stdlib Authors.