Filename Extension

Returns a filename extension.

Installation

$ npm install utils-extname

Usage

var extname = require( 'utils-extname' );

extname( filename )

Returns a filename extension.

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

Examples

var fs = require( 'fs' ),
	path = require( 'path' ),
	extname = require( 'utils-extname' );

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

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

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

To run the example code from the top-level application directory,

$ node ./examples/index.js

Tests

Unit

Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:

$ make test

All new feature development should have corresponding unit tests to validate correct functionality.

Test Coverage

This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:

$ make test-cov

Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,

$ make view-cov

License

MIT license.

Copyright

Copyright © 2015. Athan Reines.