When called without arguments, Node.js starts a REPL (Read-Eval-Print-Loop), also known as the “Node shell”. At a command prompt, type node. $ node > At the Node shell prompt > type "Hello World!" > "Hello, World!" 'Hello World!' And that's it, really
Node.js can be used to create command line utilities. The example below reads the first argument from the command line and prints a Hello message. To run this code on a Unix System: 1. Create a new file and paste the code below. The filename is irrelevant. 2. Make
First, ensure that you have Node.js installed on your platform. We use https://nvm.sh In this example, we'll create an HTTP server listening on port 1337, which sends Hello, World! to the browser. Note that instead of using port 1337, you can use any port of
Often we will refer to a file on disk or other resource using a path. For example, a path traversal attack is when an attacker supplies input that gets used with our path to access a file on the file system that we did not intend. The input usually attempts
