node.js: fs.mkdirSync(path[, mode]): Creates a directory synchronously

fs.mkdirSync(path[, mode])

This method creates a directory synchronously.

Below table summarizes the arguments of ‘mkdirSync’ method.

Argument	Type	Description
path	string or Buffer or URL	File name
mode	integer	Default: 0o777. This option is not supported in Windows.

Below table summarizes the modes supported by node.js

Constant (mode)	Octal value	Description
fs.constants.S_IRUSR	0o400	read by owner
fs.constants.S_IWUSR	0o200	write by owner
fs.constants.S_IXUSR	0o100	execute/search by owner
fs.constants.S_IRGRP	0o40	read by group
fs.constants.S_IWGRP	0o20	write by group
fs.constants.S_IXGRP	0o10	execute/search by group
fs.constants.S_IROTH	0o4	read by others
fs.constants.S_IWOTH	0o2	write by others
fs.constants.S_IXOTH	0o1	execute/search by others

Find the below working application.

HelloWorld.js

var fs = require('fs');

var folderToCreate = 'testDir';

if (fs.existsSync(folderToCreate)) {
    console.log(`File ${folderToCreate} is already exists`);
} else {
    console.log(`File ${folderToCreate} is not exists, trying to create the directory`);
    fs.mkdirSync(folderToCreate);
}

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