As the command line is concerned you will most likely be interacting with NPM way more than with Node. When you install Node, you also install Node Package Manager, commonly referred to as simply NPM. This should return a version number like this: v14.15.0 Once you have NodeJS downloaded and installed, you will want to make sure that Node is in fact installed properly by running the following command in a terminal: node -v
Step 2: Make sure Node and NPM are installed and their PATHs defined This section title is technically misleading, you actually downloaded the NodeJS installer, and once that is done downloading, you should open it and follow the directions to install Node. If you are following this tutorial, then I would recommend you download the LTS (Long-Term Support) version, that is the stable version that most people use and you will have a better time getting help if something breaks.
You also learned about some of benefits to working with TypeScript.įinally, you set up a Node project using the Express framework, but compiled and ran the project using TypeScript.Step 1: Go to the NodeJS website and download NodeJS In this tutorial, you learned about why TypeScript is useful for writing reliable JavaScript code. The lint command is the same as we ran in the previous step, minus the use of the npx prefix which is not needed in this context. This will compile and then run the generated output with node. When looking at the start command, you’ll see that first the tsc command is run, and then the node command. In the snippet above, you updated the main path to be the compiled app output, and added the start and lint commands to the scripts section. Run the following command from inside your project directory to install the TypeScript: Now that your npm project is initialized, you are ready to install and set up TypeScript.
Step 2 - Configuring the TypeScript Compiler You can always update this information later in your package.json file. The -y flag tells npm init to automatically say “yes” to the defaults. To get started, create a new folder named node_project and move into that directory: You can accomplish this by following the How to Install Node.js and Create a Local Development Environment guide for your operating system. Prerequisitesīefore you begin this guide, you will need Node.js installed on your system. You will build an Express application using TypeScript and transpile it down to JavaScript code. In this tutorial you will set up a Node project with TypeScript. Here are some benefits of using TypeScript: Note: TypeScript is technically a super-set of JavaScript, which means that all JavaScript code is valid TypeScript code.
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