Filename Extension

Return a filename extension.

Installation

npm install @stdlib/utils-extname

Usage

var extname = require( '@stdlib/utils-extname' );

extname( filename )

Returns a filename extension.

var ext = extname( 'index.js' );
// returns '.js'

Examples

var statSync = require( 'fs' ).statSync;
var path = require( 'path' );
var readDir = require( '@stdlib/fs-read-dir' ).sync;
var extname = require( '@stdlib/utils-extname' );

var files;
var fpath;
var base;
var stat;
var ext;
var i;

base = path.resolve( __dirname, '..' );
files = readDir( base );

for ( i = 0; i < files.length; i++ ) {
    fpath = path.join( base, files[ i ] );
    stat = statSync( fpath );
    if ( !stat.isDirectory() ) {
        ext = extname( fpath );
        console.log( '%s --> %s', fpath, ext || '(no ext)' );
    }
}

See Also

• @stdlib/utils-dirname: return a directory name.

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

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.