Path Module

Default path variable

// The directory of current file
console.log('__dirname：', __dirname)
// The directory including file name of current file
console.log('__filename：', __filename)
// The directory of the main file running
console.log('process.cwd()：', process.cwd())

// __dirname：     C:\Users\Dylanliu\Desktop\test\nodejs
// __filename：    C:\Users\Dylanliu\Desktop\test\nodejs\path.js
// process.cwd()： C:\Users\Dylanliu\Desktop\test\nodejs

Path resolve vs Path join

• For showing the path of . or .., it is preferred to use path resolve

• For joining the path, it is preferred to use path join

const path = require("path");

console.log("path.join() : " , path.join('.'));
// will convert into absolute path
console.log("path.resolve() : ", path.resolve('.'));

// path.join() : .
// path.resolve(): /home/xxx/xxx

console.log("path.join() : " , path.join('.', "123", '/456.js'));
//  '/' will reset the path 
console.log("path.resolve() : ", path.resolve('.',"123",'/456.js'));

// path.join() : ./123/456.js
// path.resolve(): /456.js