creating function in node js

  1. Start by creating a new file with a .js extension, for example example.js.
  2. Define a function using the function keyword followed by the name of the function and parentheses for parameters, such as function myFunction() {.
  3. Add the code inside the function, for example console.log("This is a Node.js function");.
  4. Export the function using module.exports = myFunction; to make it accessible to other files.
  5. Save the file and use require('./example.js') in another file to import and use the function you created.