Complete Modern JavaScript Firebase BootCamp the beginner 

Vscode setup and file setup

Console

Variables

let and const

Data types

Primitive vs reference

Convert to string

Convert to number

Numbers and math model

String methods and concat

Document Object Properties and Methods2

Get element by ID

querySelector

Child nodes

Child, Parent and Siblings

Create element

Replace element

Constructor and this

Add function to the constructor

Built in constructor and typeof variable

Other built in constructors

Why we need to use prototype?

Other prototypes

Inheritance

xhr object

xhr different readystate

xhr get json object

xhr get json array

xhr get remote data

synchronous and asynchronous by using callback

Custom http library

Different types of errors

Regular expression

Regular expression (character selector)

Regular expression (symbol)

Create UI

Validate first name, last name and email

Validate phone number and zip code