Function as a Library
From a module we can export a module or a single function like this: // module.exports = hi;
function say_hi(name) {
console.log('Hello ' + name)
}
console.log('Loading module')
module.exports = say_hi;
const say_hi = require('./lib2')
console.log('Hello World')
say_hi('Foo')
$ node examples/basic/app2.js
Loading module
Hello World
Hello Foo