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node.jsecmascript-6es6-modulesecmascript-5

Node Require and Import

import path from 'path';
import fs from 'fs';

fs.mkdirSync(path.join(__dirname, 'folderName'));

I want to create directories in node, when I require the modules (commonjs) everything works but when I change the type in my package.json to module and use imports the folder doesn't get created, what could I be doing wrong?

Solution

  • There is no __dirname in an ESM module. If it's something you need, you can manufacture it with this:

    import path from 'path';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

    But, many of the functions in the fs module can take import.meta.url more directly. See this other answer for details on that.