All the Node.js tutorials ⤵️
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Use the Chrome DevTools to debug a Node.js app
When we're programming it's common to have the need to quickly test and do some experiments with a piece of code.
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How to use MongoDB with Node.js
In this tutorial I'll show you how to interact with a MongoDB database from Node.js
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Run a web server from any folder
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How to write a JSON object to file in Node.js
Discover how to save a JSON object to file in Node.js, and retrieve it later
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How to determine if a date is today in JavaScript
Discover how to find out if a Date object represents a today datetime
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How to get the last updated date of a file using Node.js
Discover how to retrieve the last updated date of a file with Node.js
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How to create an empty file in Node.js
Discover how create an empty file in a filesystem folder in Node.js
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HTTP requests using Axios
Axios is a very popular JavaScript library you can use to perform HTTP requests, that works in both Browser and Node.js platforms
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An introduction to the npm package manager
A quick guide to npm, the powerful package manager key to the success of Node.js. In January 2017 over 350000 packages were reported being listed in the npm registry, making it the biggest single language code repository on Earth, and you can be sure there is a package for (almost!) everything.
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The npx Node Package Runner
npx is a very cool way to run Node code, and provides many useful features
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Introduction to Node.js
This post is a getting started guide to Node.js, the server-side JavaScript runtime environment. Node.js is built on top of the Google Chrome V8 JavaScript engine, and it's mainly used to create web servers - but it's not limited to that
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Node, the difference between development and production
Learn how to set up different configurations for production and development environments
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How to update Node.js
Find out how to properly upgrade the Node.js version you have installed
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How to use or execute a package installed using npm
How to include and use in your code a package installed in your node_modules folder
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Where to host a Node.js app
A Node.js application can be hosted in a lot of places, depending on your needs. This is a list of all the various options you have at your disposal
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Semantic Versioning using npm
Semantic Versioning is a convention used to provide a meaning to versions
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The package.json guide
The package.json file is a key element in lots of app codebases based on the Node.js ecosystem.
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The package-lock.json file
The package-lock.json file is automatically generated when installing node packages. Learn what it's about
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Where does npm install the packages?
How to find out where npm installs the packages
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Interact with the Google Analytics API using Node.js
Learn how to interface a Node.js application with the Google Analytics API, using the official `googleapis` package. We'll use a JSON Web Token and see some examples
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Should you commit the node_modules folder to Git?
That's a good question to have. There are pros and cons. I discuss the topic so you can make your own opinion.
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Update all the Node dependencies to their latest version
How do you update all the npm dependencies store in the package.json file, to their latest version available?
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Parsing JSON with Node.js
How to parse JSON from a string, and how to read a JSON file in Node.js
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Find the installed version of an npm package
How to find out which version of a particular package you have installed in your app
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Node.js Streams
Learn what streams are for, why are they so important, and how to use them.
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Get the current folder in Node
The two ways of referencing the filesystem: ./ and __dirname, explained
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Install an older version of an npm package
Learn how to install an older version of an npm package, something that might be useful to solve a compatibility problem
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How to log an object in Node
Logging objects in Node.js
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Expose functionality from a Node file using exports
How to use the module.exports API to expose data to other files in your application, or to other applications as well
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Make an HTTP POST request using Node
Find out how to make an HTTP POST request using Node
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Differences between Node and the Browser
How writing JavaScript application in Node.js differs from programming for the Web inside the browser
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Get HTTP request body data using Node
Find out how to extract the data sent as JSON through an HTTP request body using Node
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Node Buffers
Learn what Node buffers are, what they are used for, how to use them
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A brief history of Node.js
A look back on the history of Node.js from 2009 to today
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How to use the Node.js REPL
REPL stands for Read-Evaluate-Print-Loop, and it's a great way to explore the Node features in a quick way
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How to install Node.js
How you can install Node.js on your system: a package manager, the official website installer or nvm
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How much JavaScript do you need to know to use Node?
If you are just starting out with JavaScript, how much deeply do you need to know the language?
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Node, accept arguments from the command line
How to accept arguments in a Node.js program passed from the command line
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Uninstalling npm packages
How to uninstall an npm Node package, locally or globally
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Output to the command line using Node
How to print to the command line console using Node, from the basic console.log to more complex scenarios
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Accept input from the command line in Node
How to make a Node.js CLI program interactive using the built-in readline Node module
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How to exit from a Node.js program
Learn how to terminate a Node.js app in the best possible way
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How to read environment variables from Node.js
Learn how to read and make use of environment variables in a Node.js program
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npm global or local packages
When is a package best installed globally? Why?
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npm dependencies and devDependencies
When is a package a dependency, and when is it a dev dependency?
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The Node Event emitter
How to work with custom events in Node
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Understanding setImmediate()
The Node.js setImmediate function interacts with the event loop in a special way
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Understanding process.nextTick()
The Node.js process.nextTick function interacts with the event loop in a special way
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The Node.js Event Loop
The Event Loop is one of the most important aspects to understand about Node
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Build an HTTP Server
How to build an HTTP server with Node.js
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Making HTTP requests with Node
How to perform HTTP requests with Node.js using GET, POST, PUT and DELETE
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HTTP requests in Node using Axios
Axios is a very convenient JavaScript library to perform HTTP requests in Node.js
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The Node fs module
The fs module of Node.js provides useful functions to interact with the file system
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Working with file descriptors in Node
How to interact with file descriptors using Node
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Node file stats
How to get the details of a file using Node
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Writing files with Node
How to write files using Node
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Reading files with Node
How to read files using Node
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The Node path module
The path module of Node.js provides useful functions to interact with file paths
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Working with folders in Node
How to interact with folders using Node
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Node File Paths
How to interact with file paths and manipulate them in Node
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Why should you use Node.js in your next project?
When is it a good idea to use Node.js over other technologies? Why Node.js and not another solution? This post aims to answer that question.
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The Node events module
The events module of Node.js provides the EventEmitter class
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The Node os module
The os module of Node.js provides useful functions to interact with underlying system
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Error handling in Node.js
How to handle errors during the execution of a Node.js application
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The basics of working with MySQL and Node
MySQL is one of the most popular relational databases in the world. Find out how to make it work with Node.js
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Using WebSockets with Node.js
WebSockets are an alternative to HTTP communication in Web Applications. They offer a long lived, bidirectional communication channel between client and server.
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The Node http module
The http module of Node.js provides useful functions and classes to build an HTTP server