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    @stdlib/assert-is-boolean
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    0.0.8 • Public • Published

    isBoolean

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    Test if a value is a boolean.

    Installation

    npm install @stdlib/assert-is-boolean

    Usage

    var isBoolean = require( '@stdlib/assert-is-boolean' );

    isBoolean( value )

    Tests if a value is a boolean.

    var bool = isBoolean( false );
    // returns true
    
    bool = isBoolean( true );
    // returns true
    
    bool = isBoolean( new Boolean( false ) );
    // returns true
    
    bool = isBoolean( new Boolean( true ) );
    // returns true

    isBoolean.isPrimitive( value )

    Tests if a value is a primitive boolean.

    var bool = isBoolean.isPrimitive( true );
    // returns true
    
    bool = isBoolean.isPrimitive( false );
    // returns true
    
    bool = isBoolean.isPrimitive( new Boolean( true ) );
    // returns false

    isBoolean.isObject( value )

    Tests if a value is a Boolean object.

    var bool = isBoolean.isObject( true );
    // returns false
    
    bool = isBoolean.isObject( new Boolean( false ) );
    // returns true

    Examples

    var isBoolean = require( '@stdlib/assert-is-boolean' );
    
    var bool = isBoolean( false );
    // returns true
    
    bool = isBoolean( new Boolean( false ) );
    // returns true
    
    bool = isBoolean( 'true' );
    // returns false
    
    bool = isBoolean( null );
    // returns false

    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.

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    License

    See LICENSE.

    Copyright

    Copyright © 2016-2022. The Stdlib Authors.

    Install

    npm i @stdlib/assert-is-boolean

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    206,425

    Version

    0.0.8

    License

    Apache-2.0

    Unpacked Size

    44.2 kB

    Total Files

    13

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser