MrDataScientist/Typescript-Training

Complete Typescript course

• As a starting point, I recommend using a typescript playground to see the differences between javascript and typescript.
• Use this link - http://www.typescriptlang.org/play/index.html
• try this sample code:

const DC_COMICS = "DC COMICS EDITOR";
const MARVEL = "MARVEL EDITOR";

var editor = DC_COMICS;

if (editor === DC_COMICS) {
    var superman:any = { name: 'superman', editor: editor };
    console.log("Hero inside the block:", superman);

    superman.creationDate = 1938;
}

console.log("Hero outside the block", superman);

EcmaScript features

let & const

dependencies

• npm i @types/node --save
• npm i @types/lodash --save
• npm i ts-node -D

Then add this line of code to the script in the package.json file:

• "start": ",/node_modules/.bin/ts-node ./server/server.ts"

• npm i sequelize -S

then install the type definitions for sequelize

• npm i @types/sequelize -D

Then in order to use Postgres you will need to install pg

• npm i pg -S

Run the server

• npm start