@stdlib/assert-is-absolute-path

Test if a value is an absolute path.

Usage no npm install needed!

<script type="module">
  import stdlibAssertIsAbsolutePath from 'https://cdn.skypack.dev/@stdlib/assert-is-absolute-path';
</script>

README

isAbsolutePath

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Test if a value is an absolute path.

Installation

npm install @stdlib/assert-is-absolute-path

Usage

var isAbsolutePath = require( '@stdlib/assert-is-absolute-path' );

isAbsolutePath( value )

Tests if a value is an absolute path.

var IS_WINDOWS = require( '@stdlib/assert-is-windows' );

var bool;
if ( IS_WINDOWS ) {
    bool = isAbsolutePath( 'C:\\foo\\bar\\baz' );
    // returns true
} else {
    bool = isAbsolutePath( '/foo/bar/baz' );
    // returns true
}

isAbsolutePath.posix( value )

Tests if a value is a POSIX absolute path.

var bool = isAbsolutePath.posix( '/foo/bar/baz' );
// returns true

bool = isAbsolutePath.posix( 'foo/bar/baz' );
// returns false

isAbsolutePath.win32( value )

Tests if a value is a Windows absolute path.

var bool = isAbsolutePath.win32( 'C:\\foo\\bar\\baz' );
// returns true

bool = isAbsolutePath.win32( 'foo\\bar\\baz' );
// returns false

Notes

  • isAbsolutePath() is platform-specific. On Windows platforms, the function is equal to isAbsolutePath.win32(). On POSIX platforms, the function is equal to isAbsolutePath.posix().

Examples

var isAbsolutePath = require( '@stdlib/assert-is-absolute-path' );

var bool = isAbsolutePath.posix( '/foo/bar/baz' );
// returns true

bool = isAbsolutePath.posix( '/foo/..' );
// returns true

bool = isAbsolutePath.posix( 'foo/' );
// returns false

bool = isAbsolutePath.posix( 'foo' );
// returns false

bool = isAbsolutePath.posix( '.' );
// returns false

bool = isAbsolutePath.posix( '' );
// returns false

bool = isAbsolutePath.win32( 'C:\\foo\\bar\\baz' );
// returns true

bool = isAbsolutePath.win32( '//server' );
// returns true

bool = isAbsolutePath.win32( '\\\\server' );
// returns true

bool = isAbsolutePath.win32( 'C:/foo/bar/baz' );
// returns true

bool = isAbsolutePath.win32( '/foo/..' );
// returns true

bool = isAbsolutePath.win32( 'foo\\bar\\baz' );
// returns false

bool = isAbsolutePath.win32( 'foo/bar/baz' );
// returns false

bool = isAbsolutePath.win32( 'foo/..' );
// returns false

bool = isAbsolutePath.win32( '.' );
// returns false

bool = isAbsolutePath.win32( '' );
// returns false

CLI

Installation

To use the module as a general utility, install the module globally

npm install -g @stdlib/assert-is-absolute-path

Usage

Usage: is-absolute-path [options] [<path>]

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.
         --platform name       Platform: 'win32' or 'posix'.

Examples

$ is-absolute-path /foo/bar/baz --platform=posix
true

To use as a standard stream,

$ echo -n './docs/repl.txt' | is-absolute-path
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.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2021. The Stdlib Authors.