how to return when child process is complete in node js

const { exec } = require('child_process');

const childProcess = exec('your_command_here', (error, stdout, stderr) => {
  if (error) {
    console.error(`Error: ${error.message}`);
    return;
  }
  if (stderr) {
    console.error(`stderr: ${stderr}`);
    return;
  }
  console.log(`stdout: ${stdout}`);
});

childProcess.on('close', (code) => {
  console.log(`Child process exited with code ${code}`);
});