Install VSCode

Download and install from https://code.visualstudio.com/download

Install Node

Download and install the Node package from https://nodejs.org/en/download

Create a Folder for our Project

mkdir tsSample
cd tsSample

Create a Node Package (package.json)

npm init -y

This command creates a package file called package.json

{
  "name": "tssample",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "description": ""
}

Install Typescript

Using node, you can install typescript by issuing the following command:

sudo npm install -g typescript

After installing typescript, you have access to tsc, the typescript compiler command line tool.

Install Typescript Node

Typescript Node is used to debug TypeScript.

sudo npm install -g ts-node

Because of a bug, you may need to install it locally as well

npm install ts-node --save-dev

Install TypeScript Debugger in VSCode

Initialize TypeScript Config

Initialize a new project while specifying the output directories. The sourceMap flag keeps a map of the source to the compiled javascript file.

tsc --init --sourceMap --outDir dist

This command create a typescript configuration file called: tsconfig.json.

Create Directories and Source

Make outDir.

mkdir dist

Testing

Mocha

Mocha is a unit test framework for TypeScript.

https://www.testim.io/blog/mocha-for-typescript-testing/

sudo npm install -g mocha --save-dev
npm install mocha --save-dev

Verify it is installed correctly

mocha --version                     
11.1.0

To install types associated with Chai, run the following command:

npm install @types/mocha --save-dev
npm install chai @types/chai@4.2.0 --save-dev
npm install sinon @types/sinon --save-dev

npm run build
npm test

References