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----
-title: Tutorial - Introduction
-sidebar_label: Introduction
-slug: introduction
----
-
-import Tabs from '@theme/Tabs';
-import TabItem from '@theme/TabItem';
-
-# Getting started
-
-Welcome to the Socket.IO tutorial!
-
-In this tutorial we'll create a basic chat application. It requires almost no basic prior knowledge of Node.JS or Socket.IO, so it’s ideal for users of all knowledge levels.
-
-## Introduction
-
-Writing a chat application with popular web applications stacks like LAMP (PHP) has normally been very hard. It involves polling the server for changes, keeping track of timestamps, and it’s a lot slower than it should be.
-
-Sockets have traditionally been the solution around which most real-time chat systems are architected, providing a bi-directional communication channel between a client and a server.
-
-This means that the server can *push* messages to clients. Whenever you write a chat message, the idea is that the server will get it and push it to all other connected clients.
-
-## How to use this tutorial
-
-### Tooling
-
-Any text editor (from a basic text editor to a complete IDE such as [VS Code](https://code.visualstudio.com/)) should be sufficient to complete this tutorial.
-
-Additionally, at the end of each step you will find a link to some online platforms ([CodeSandbox](https://codesandbox.io) and [StackBlitz](https://stackblitz.com), namely), allowing you to run the code directly from your browser:
-
-
-
-### Syntax settings
-
-In the Node.js world, there are two ways to import modules:
-
-- the standard way: ECMAScript modules (or ESM)
-
-```js
-import { Server } from "socket.io";
-```
-
-Reference: https://nodejs.org/api/esm.html
-
-- the legacy way: CommonJS
-
-```js
-const { Server } = require("socket.io");
-```
-
-Reference: https://nodejs.org/api/modules.html
-
-Socket.IO supports both syntax.
-
-:::tip
-
-We recommend using the ESM syntax in your project, though this might not always be feasible due to some packages not supporting this syntax.
-
-:::
-
-For your convenience, throughout the tutorial, each code block allows you to select your preferred syntax:
-
-