Nodes have three types of modules: built-in modules (in the node documentation), third-party modules (written by the bosses themselves), custom modules (the way to become bosses);

 

 

1. How to create a custom module:

Create a new JS file, such as:

letObj = {name:'AAA'SayHello:function(a){

       console.log (hello +this.name)}}// Throw the object

module.exports = obj 
Copy the code

 

How to use custom modules:

Then in the JS file to call

// Create an object to receive the module object

const obj = require('./ module.js')// This is the path to start the js fileperformconsole.log (obj) obj. Sayhello ();Copy the code

2. Use built-in modules

Const obj = require (‘ module name ‘)

Call directly according to official documentation

3. Third-party modules

Use NPM or CNPM to download related modules

Const obj = require (‘ module name ‘);

Then use it according to third-party documentation