path-type 
Check if a path is a file, directory, or symlink
Install
$ npm install path-type
Usage
const {isFile} = require('path-type');
(async () => {
console.log(await isFile('package.json'));
//=> true
})();API
isFile(path)
Check whether the passed path is a file.
Returns a Promise<boolean>.
path
Type: string
The path to check.
isDirectory(path)
Check whether the passed path is a directory.
Returns a Promise<boolean>.
isSymlink(path)
Check whether the passed path is a symlink.
Returns a Promise<boolean>.
isFileSync(path)
Synchronously check whether the passed path is a file.
Returns a boolean.
isDirectorySync(path)
Synchronously check whether the passed path is a directory.
Returns a boolean.
isSymlinkSync(path)
Synchronously check whether the passed path is a symlink.
Returns a boolean.
License
MIT © Sindre Sorhus