j-thepac

/*
Nodejs is javascript engine from Chrome V8 Engine .
Which runs javascript code in the backend
node js is non blocking io module ie., if any lines takes more time , than the cpu does not block other lines and continues execution of other lines 
npm - package manager for js .Similar to pip in python

Note: Never push node module dependencies to Git as it is huge
docs: all functions in npm is 
- https://nodejs.org/dist/latest-v17.x/docs/api/
- https://nodejs.dev/learn/introduction-to-nodejs

j-thepac

import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.functions._
  
val spark=SparkSession
    .builder()
    .master("local")
    .appName("local")
    .getOrCreate()
    
import spark.implicits._

j-thepac

trait Activities
case class PersonWalk(km:Float) extends Activities
case class PersonTalk(words:String) extends Activities


class CompanionPerson {


  val perform:PartialFunction[Activities,Unit]= {
    case PersonWalk(km) => println(km)

j-thepac

trait Activities
case class PersonWalk(km:Float) extends Activities
case class PersonTalk(words:String) extends Activities


class CompanionPerson {
  def perform(act:Activities)= {
    act match{
    case PersonWalk(km) => println(km)
    case PersonTalk(words) => println(words)

j-thepac

class Person:
  def __init__(self,name):
    self.name=name


import json #yaml
v='{"name":"deepak"}'
j=json.loads(v)
person=Person(**j)