Data Types

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7 Primitive Datatypes

• To store differnce types of data
  • Like storting differnce items like food, pens , mobiles in differnent boxes
  • You can put other items also in differnt box like keeping pens in mobile box
  • But this is not recommended
• ShortCut -> nn ss bb u
  • null
  • number
  • string
  • symbol
  • boolen
  • bigint
  • undefined
  //  nn bb ss u - Primitive DataTypes
  let a = null;
  let b = 345;
  let c = true; // other value is trye
  let d = BigInt("567");
  let e = "Harry"
  let f = Symbol("I am a Symbol");
  let g = undefined // same as let g
  console.log(a,b,c,d,e,f,g)
  console.log(typeof d)
  

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Objects or Non primitive DataTypes

• Objects or dictionaries in python are Non prmitive datatypes
  // Objects in Js - Non primitve DataTypes
  
  const item = {
      "Kalyan" : true,
      "Kiran" : false,
      "Rajendra" : 10,
      "Sumathi" : undefined
  }
  
  console.log(item["Kalyan"]) //value from dictionary
  console.log(item["Ka"]) // undefined
  // Objects Used for mapping items