Node.js check if path is file or directory

Question

I can't seem to get any search results that explain how to do this.

All I want to do is be able to know if a given path is a file or a directory (folder).

Answer 1

The following should tell you. From the docs:

fs.lstatSync(path_string).isDirectory()  

Objects returned from fs.stat() and fs.lstat() are of this type.

stats.isFile() stats.isDirectory() stats.isBlockDevice() stats.isCharacterDevice() stats.isSymbolicLink() // (only valid with fs.lstat()) stats.isFIFO() stats.isSocket() 

NOTE:

The above solution will throw an Error if; for ex, the file or directory doesn't exist.

If you want a true or false approach, try fs.existsSync(dirPath) && fs.lstatSync(dirPath).isDirectory(); as mentioned by Joseph in the comments below.

Answer 2

Update: Node.Js >= 10

We can use the new fs.promises API

const fs = require('fs').promises;  (async() => {     const stat = await fs.lstat('test.txt');     console.log(stat.isFile()); })().catch(console.error) 

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Any Node.Js version

Here's how you would detect if a path is a file or a directory asynchronously, which is the recommended approach in node. using fs.lstat

const fs = require("fs");  let path = "/path/to/something";  fs.lstat(path, (err, stats) => {      if(err)         return console.log(err); //Handle error      console.log(`Is file: ${stats.isFile()}`);     console.log(`Is directory: ${stats.isDirectory()}`);     console.log(`Is symbolic link: ${stats.isSymbolicLink()}`);     console.log(`Is FIFO: ${stats.isFIFO()}`);     console.log(`Is socket: ${stats.isSocket()}`);     console.log(`Is character device: ${stats.isCharacterDevice()}`);     console.log(`Is block device: ${stats.isBlockDevice()}`); }); 

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Note when using the synchronous API:

When using the synchronous form any exceptions are immediately thrown. You can use try/catch to handle exceptions or allow them to bubble up.

try{      fs.lstatSync("/some/path").isDirectory() }catch(e){    // Handle error    if(e.code == 'ENOENT'){      //no such file or directory      //do something    }else {      //do something else    } }