How do you get a list of the names of all files present in a directory in Node.js?

Question

I\'m trying to get a list of the names of all the files present in a directory using Node.js. I want output that is an array of filenames. How can I do this?

Answer 1

My 2 cents if someone:

Just want to list file names (excluding directories) from a local sub-folder on their project

• ✅ No additional dependencies
• ✅ 1 function
• ✅ Normalize path (Unix vs. Windows)

const fs = require("fs");
const path = require("path");

/**
 * @param {string} relativeName "resources/foo/goo"
 * @return {string[]}
 */
const listFileNames = (relativeName) => {
  try {
    const folderPath = path.join(process.cwd(), ...relativeName.split("/"));
    return fs
      .readdirSync(folderPath, { withFileTypes: true })
      .filter((dirent) => dirent.isFile())
      .map((dirent) => dirent.name.split(".")[0]);
  } catch (err) {
    // ...
  }
};

README.md
package.json
resources
 |-- countries
    |-- usa.yaml
    |-- japan.yaml
    |-- gb.yaml
    |-- provinces
       |-- .........


listFileNames("resources/countries") #=> ["usa", "japan", "gb"]