Return a regular expression to capture a POSIX filename extension.
APACHE-2.0 License
Regular expression to capture a POSIX filename extension.
npm install @stdlib/regexp-extname-posix
Alternatively,
script
tag without installation and bundlers, use the ES Module available on the esm
branch (see README).deno
branch (see README for usage intructions).umd
branch (see README).The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.
To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
var reExtnamePosix = require( '@stdlib/regexp-extname-posix' );
Returns a regular expression to capture a POSIX filename extension.
var RE_EXTNAME_POSIX = reExtnamePosix();
var ext = RE_EXTNAME_POSIX.exec( 'index.js' )[ 1 ];
// returns '.js'
Regular expression to capture a POSIX filename extension.
var ext = reExtnamePosix.REGEXP.exec( 'index.js' )[ 1 ];
// returns '.js'
When executed against dotfile filenames (e.g., .gitignore
), the regular expression does not capture the basename as a filename extension.
var ext = reExtnamePosix.REGEXP.exec( '.bash_profile' )[ 1 ];
// returns ''
ext = reExtnamePosix.REGEXP.exec( '.travis.yml' )[ 1 ];
// returns '.yml'
var reExtnamePosix = require( '@stdlib/regexp-extname-posix' );
var RE_EXTNAME_POSIX = reExtnamePosix();
var ext;
ext = RE_EXTNAME_POSIX.exec( 'index.js' )[ 1 ];
// returns '.js'
ext = RE_EXTNAME_POSIX.exec( '/foo/bar/home.html' )[ 1 ];
// returns '.html'
ext = RE_EXTNAME_POSIX.exec( 'foo/file.pdf' )[ 1 ];
// returns '.pdf'
ext = RE_EXTNAME_POSIX.exec( 'beep.' )[ 1 ];
// returns '.'
ext = RE_EXTNAME_POSIX.exec( '' )[ 1 ];
// returns ''
ext = RE_EXTNAME_POSIX.exec( '/foo/bar/file' )[ 1 ];
// returns ''
ext = RE_EXTNAME_POSIX.exec( '/foo/bar/.gitignore' )[ 1 ];
// returns ''
@stdlib/regexp-extname
: return a regular expression to capture a filename extension.
@stdlib/regexp-extname-windows
: return a regular expression to capture a Windows filename extension.
@stdlib/utils-extname
: return a filename extension.
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.
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See LICENSE.
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