junk

What is junk?

The 'junk' npm package is a small utility that helps in filtering out system files and other non-essential files from an array of filenames. It is particularly useful when dealing with file listings that may include unwanted files like '.DS_Store' on macOS or 'Thumbs.db' on Windows.

What are junk's main functionalities?

Filter out junk files from a list

This feature allows you to remove common system-generated files from an array of filenames, ensuring that only relevant files are processed or displayed.

const junk = require('junk');

const files = ['file1.txt', '.DS_Store', 'file2.txt', 'Thumbs.db'];
const cleanFiles = files.filter(junk.not);
console.log(cleanFiles); // Output: ['file1.txt', 'file2.txt']

Identify if a file is considered junk

This function checks if a single filename is considered 'junk' by comparing it against a predefined list of junk file names.

const junk = require('junk');

console.log(junk.is('.DS_Store')); // Output: true
console.log(junk.is('file1.txt')); // Output: false

Other packages similar to junk

ignore

Similar to 'junk', the 'ignore' package is used to manage and filter files based on rules specified in a .gitignore file. While 'junk' specifically filters out system and hidden files, 'ignore' provides a more flexible approach allowing users to define custom patterns for what should be ignored.

glob

The 'glob' package provides functionality to match file paths against specified patterns. Although it's not specifically for filtering out junk files, it can be configured to exclude certain patterns similar to junk files, offering a broader file filtering capability compared to 'junk'.

README

junk

Helps you filter out OS junk files like .DS_Store and Thumbs.db

Getting started

Install: npm install --save junk

Example

var fs = require('fs');
var junk = require('junk');

fs.readdir('path', function (err, files) {
	console.log(files);
	// ['.DS_Store', 'test.jpg']

	files = files.filter(function (file) {
		return !junk.test(file);
	});

	console.log(files);
	// ['test.jpg']
});

Documentation

junk.test(filename)

Convenience method to test a string against all the junk.rules entries.

junk.rules

Returns an array of regexes you can match against.

License

MIT License • © Sindre Sorhus