mt2h/nodejs

NODE

Install

sudo snap install node --classic --channel 12/stable
node -v
npm -v

Initialize a Project

npm init

npm install [email protected]
npm uninstall validator
npm install [email protected]

node app.js

sudo npm install [email protected] -g
nodemon app.js

Arguments

Use yargs

npm i [email protected]
node app.js --help
node app.js --version
node app.js add --title="Shopping lit"

requests and web servers

npm i [email protected]
npm i [email protected]
npm i [email protected]

Debugging

Add debugger in the code

Execute inspect

Open Chrome on chrome://inspect/

Press inspect

Press play buttom

Console

Call Stack: Callback Queue and Event Loop

Example 1:

Example 2:

Example 3:

Run hds together node with nodemon

nodemon src/app.js -e js,hbs

Install Horoku

curl https://cli-assets.heroku.com/install.sh | sh
heroku -v
heroku login

heroku keys:add #add public to to heroku
cd web-server-node-js/

heroku create mead-weather-application

git push heroku main

Execute app node localy

chmod +x src/app.js
npm run start

npm run dev

npm install [email protected] --save-dev

MongoDB

npm init -y
npm i [email protected]
npm i [email protected]
npm i [email protected]