Node Js Tutorials

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  • Installing on Node.js on Windows or on Windows Subsystem for Linux.
  • Open your command line and create a new directory: mkdir HelloNode, then enter the directory: cd HelloNode.
  • Create a JavaScript file named "app.js" with a variable named "msg" inside: echo var msg > app.js.

Open the directory and your app.js file in VS Code using the command: code . Add a simple string variable ("Hello World"), then send the contents of the string to your console by entering this in your "app.js" file:. To run your "app.js" file with Node.js. Open your terminal right inside VS Code by selecting View > Terminal (or select Ctrl+`, using the backtick character).

If you need to change the default terminal, select the dropdown menu and choose Select Default Shell. In the terminal, enter: node app.js. You should see the output: "Hello World". Notice that when you type console in your 'app.js' file, VS Code displays supported options related to the console object for you to choose from using IntelliSense.

Try experimenting with Intellisense using other JavaScript objects. Open your command line (Command Prompt, Powershell, or whatever you prefer). Create a new project folder: mkdir ExpressProjects and enter that directory: cd ExpressProjects.

Node.js Frameworks and Tools

Use Express to create a HelloWorld project template: npx express-generator HelloWorld --view=pug.

Learn NodeJS Step by Step

We are using the npx command here to execute the Express.js Node package without actually installing it (or by temporarily installing it depending on how you want to think of it).

If you try to use the express command or check the version of Express installed using: express --version, you will receive a response that Express cannot be found.

If you want to globally install Express to use over and over again, use: npm install -g express-generator.

Nodejs Crash Course : For Backend Development

You can view a list of the packages that have been installed by npm using npm list.

They'll be listed by depth (the number of nested directories deep).

Packages that you installed will be at depth 0.

Learn Nodejs by building 10 projects

That package's dependencies will be at depth 1, further dependencies at depth 2, and so on.

To learn more, see Difference between npx and npm?

on StackOverflow.

Master NodeJs : A Practical Approach To Node JS

Examine the files and folders that Express included by opening the project in VS Code, with: code .

The files that Express generates will create a web app that uses an architecture that can appear a little overwhelming at first.

You'll see in your VS Code Explorer window (Ctrl+Shift+E to view) that the following files and folders have been generated:.

Serverless Development with AWS Lambda and NodeJS

Contains the executable file that starts your app.

It fires up a server (on port 3000 if no alternative is supplied) and sets up basic error handling.

Contains all the publicly accessed files, including JavaScript files, CSS stylesheets, font files, images, and any other assets that people need when they connect to your website.

Unit Testing and Test Driven Development in NodeJS

Contains all the route handlers for the application.

Two files, index.js and users.js, are automatically generated in this folder to serve as examples of how to separate out your application’s route configuration.

Contains the files used by your template engine.