nnhjs

Create Database - use DATABASE_NAME
Show all databse - show dbs
show current database - db
drop databse - db.dropDatabase()
Create collection: db.createCollection(name, options)
Drop collection: db.COLLECTION_NAME.drop()

Data type: String, Boolean, Araay, Integer, Double, Object, Null, Symbol, Timecstamp, Date, Object ID, Binary Data, Code, Regular expression

* Insert Document: you can use method insert() or save()

nnhjs

CLOUD.MONGODB
  sharding - lưu dữ liệu 
whitelist IP
Create database user for your cluster
Conect to Cluster
Insert and view Data your Cluster

nnhjs

Hướng dẫn viết một API cơ bản cho người tham gia phát triển cùng  
Sample : 
server 
  -
path   
    get
      

nnhjs

Hoisting
Var let const
  hoisting
  declare
  block scope
Function contex & bind
  //global context
  //function context
  //bind
Arrow function expression (fat arrow)

nnhjs

Code: Intrucstion
Expressions are questions that Javascript can answer. Javascript answers expressions in the only way it knows how - with values.
Variables are Wires, Varaibles are not Values
Values:
  Types of Values:
    Primitive Values: Immutable values
      1. Undefined
        One value is undefined
      2. Null
        One value is null