Learning Node.js Development

Exporting the functions

Now, obviously, the preceding example is pretty contrived. We'll not be exporting static numbers; the real goal of exports is to be able to export functions that get used inside app.js. Let's take a quick moment to export two functions. In the notes.js file, I'll set module.exports.addnote equal to a function; the function keyword followed by opening and closing parentheses, which is followed by the curly braces:

console.log('Starting notes.js');module.exports.addNote = function () {} 

Now, throughout the course, I'll be using arrow functions where I can, as shown in the preceding code. To convert a regular ES5 function into an arrow function, all you do is remove the function keyword and replace it with an => sign ...