Get parent directory name in Node.js

Question

I am using Node.js, and I want to obtain the parent directory name for a file. I have the file \"../test1/folder1/FolderIWant/test.txt\".

I want to get

Answer 1

process.mainModule property is deprecated in v14.0.0. If foo.js is run by node foo.js (e.g. somedir/foo.js"),

const path = require("path");

module.exports = path.dirname(require.main.filename);

result: somedir

Use require.main instead