Antoine du Hamel
260092eca3
We had a few code snippets that were using a non-descriptive tag (e.g. `console` or `text`), whereas the actual language it's using describes it better, and improves the syntax highlighting. This commit also removes non-necessary leading chars (e.g. `$`, `>`, or `%`) to make it easier for readers to copy and paste to try the command themselves. PR-URL: https://github.com/nodejs/node/pull/48082 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Paolo Insogna <paolo@cowtech.it> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
2.1 KiB
Usage and example
Usage
node [options] [V8 options] [script.js | -e "script" | - ] [arguments]
Please see the Command-line options document for more information.
Example
An example of a web server written with Node.js which responds with
'Hello, World!':
Commands in this document start with $ or > to replicate how they would
appear in a user's terminal. Do not include the $ and > characters. They are
there to show the start of each command.
Lines that don't start with $ or > character show the output of the previous
command.
First, make sure to have downloaded and installed Node.js. See Installing Node.js via package manager for further install information.
Now, create an empty project folder called projects, then navigate into it.
Linux and Mac:
mkdir ~/projects
cd ~/projects
Windows CMD:
mkdir %USERPROFILE%\projects
cd %USERPROFILE%\projects
Windows PowerShell:
mkdir $env:USERPROFILE\projects
cd $env:USERPROFILE\projects
Next, create a new source file in the projects
folder and call it hello-world.js.
Open hello-world.js in any preferred text editor and
paste in the following content:
const http = require('node:http');
const hostname = '127.0.0.1';
const port = 3000;
const server = http.createServer((req, res) => {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello, World!\n');
});
server.listen(port, hostname, () => {
console.log(`Server running at http://${hostname}:${port}/`);
});
Save the file, go back to the terminal window, and enter the following command:
node hello-world.js
Output like this should appear in the terminal:
Server running at http://127.0.0.1:3000/
Now, open any preferred web browser and visit http://127.0.0.1:3000.
If the browser displays the string Hello, World!, that indicates
the server is working.