How to fix Error: path.resolve() received no arguments (at least one required) in Node.js

const path = require('path');

// Wrong - passing undefined
const baseDir = process.env.BASE_DIR; // undefined if not set
const fullPath = path.resolve(baseDir, 'dist'); // Error!

// Correct - provide fallback
const baseDir = process.env.BASE_DIR || process.cwd();
const fullPath = path.resolve(baseDir, 'dist');

const path = require('path');

// Wrong - no validation
function buildPath(dir, file) {
  return path.resolve(dir, file);
}
buildPath(); // Error if called without arguments!

// Correct - validate and provide defaults
function buildPath(dir, file) {
  if (!dir) {
    throw new Error('dir argument is required');
  }
  if (!file) {
    throw new Error('file argument is required');
  }
  return path.resolve(dir, file);
}

// Or with defaults
function buildPath(dir = process.cwd(), file = '') {
  return path.resolve(dir, file);
}

const path = require('path');

// Wrong - property might not exist
const config = { output: undefined };
const { rootDir, output } = config;
const outputPath = path.resolve(rootDir, output); // Error!

// Correct - provide defaults in destructuring
const { rootDir = process.cwd(), output = 'dist' } = config;
const outputPath = path.resolve(rootDir, output);

// Or check before using
const config = { output: 'build' };
const rootDir = config.rootDir || process.cwd();
const output = config.output || 'dist';
const outputPath = path.resolve(rootDir, output);

const path = require('path');
require('dotenv').config(); // Load .env file

// Wrong - no fallback
const projectRoot = path.resolve(process.env.PROJECT_ROOT);

// Correct - with validation
const projectRoot = process.env.PROJECT_ROOT
  ? path.resolve(process.env.PROJECT_ROOT)
  : process.cwd();

// Or throw early if required
if (!process.env.PROJECT_ROOT) {
  throw new Error('PROJECT_ROOT environment variable is required');
}
const projectRoot = path.resolve(process.env.PROJECT_ROOT);

// webpack.config.js
const path = require('path');

// Wrong - if __dirname is somehow undefined
module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'), // Ensure __dirname exists
    filename: 'bundle.js'
  }
};

// Correct - validate or use absolute fallback
const projectRoot = __dirname || process.cwd();

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(projectRoot, 'dist'),
    filename: 'bundle.js'
  }
};

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

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

const distPath = path.resolve(__dirname, 'dist');