node js code for saving first middle and last name

const fs = require('fs');

const saveName = (firstName, middleName, lastName) => {
  const fullName = `${firstName} ${middleName} ${lastName}`;

  fs.writeFile('name.txt', fullName, (err) => {
    if (err) {
      console.error(err);
      return;
    }
    console.log('Name saved successfully!');
  });
};

saveName('John', 'Doe', 'Smith');

• First, we import the fs module, which stands for file system. This module provides functions for interacting with the file system in Node.js.
• Next, we define a function called saveName that takes three parameters: firstName, middleName, and lastName.
• Inside the saveName function, we create a fullName variable by concatenating the three name parameters with spaces in between.
• We then use the fs.writeFile function to write the fullName to a file called name.txt. This function takes three parameters: the file name, the data to be written, and a callback function that will be called when the operation is complete.
• If there is an error during the file write operation, we log the error to the console.
• If the operation is successful, we log a success message to the console.
• Finally, we call the saveName function with some example values ('John', 'Doe', 'Smith') to save the name to the file.

This code will save the full name (first name, middle name, and last name) to a file called name.txt using the Node.js fs module.