1. How to extract filename from path

const path = require('path');
let file = path.basename('/home/joe/image.png');

• require('path') - module to work with file/dir path,
• .basename( - return filename part of a given path,
• /home/joe/image.png - sample path to extract filename from.

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2. How to get file extension

const path = require('path');
let ext = path.extname('image.png');

• require('path') - module to work with file/dir path,
• .extname( - returns extension of a given path string,
• image.png - sample file path to get extension from.

Original version, improve this code.

3. How to get path dirname

const path = require('path');
let dir = path.dirname('/home/joe/image.png');

• require('path') - module to work with file/dir path,
• .dirname( - return dir part of a given path,
• /home/joe/image.png - sample path to return dir for.

Original version, improve this code.