Class-2(Introduction to javascript)

//Data is everywhere

//const, let/var
//var - Never ever use var
//const, let
// const firstName = 'samim' //string
// const age = 28 //number
// const profession = 'web developer' //string
// const isProgrammer = true //boolean

// console.log(firstName, age)
// console.log(
//   'First Name ' + firstName + '.' + ' I am ' + age + ' I am a ' + profession
// )

// console.log(`First Name ${firstName}. I am ${age}. I am a ${profession}`)

//array
// const info = ['samim', 28, 'web developer', true]
//length-4(start from 1)
//accessing element (start from 0)
// const index = info.length - 1
// console.log(info[index])

// console.log(`First Name ${info[0]}. I am ${info[1]}. I am a ${info[2]}`)

//nested

//object
// const userInfo = {
//   firstName: 'samim',
//   age: 28,
//   profession: 'web programmer',
//   fullName: function () {
//     console.log(this.firstName)
//   },
//   isProgrammer: true,
//   random1: [1, 2, 3, 5],
//   random2: {
//     greet: 'hello'
//   }
// }

// userInfo.fullName()

// const myAge = 'age'

// console.log(userInfo[myAge])

// console.log(userInfo.age)
// console.log(userInfo['age'])

// console.log(userInfo.random1[3])
// console.log(userInfo.random2.greet)

// console.log(
//   `First Name ${userInfo.firstName}. I am ${userInfo.age}. I am a ${userInfo.profession}`
// )





//Introduction to Function(code reuse)

// function showInfo(num1, num2) {
// console.log(num1, num2)
//function body
//   return num1 + num2
// }

// console.log(showInfo(10, 5))

// console.log(3 + 5)
// console.log(10 + 5)
// console.log(10 + 5)
// console.log(10 + 5)
// console.log(10 + 5)
// console.log(10 + 5)
// console.log(10 + 5)





// function showBio(userInfo) {
//   return `First Name ${userInfo.firstName}. I am ${userInfo.age}. I am a ${userInfo.profession}`
// }

// const info = {
//   firstName: 'samim',
//   age: 28,
//   profession: 'web programmer',
//   isProgrammer: true,
//   random1: [1, 2, 3, 5],
//   random2: {
//     greet: 'hello'
//   }
// }

// console.log(showBio(info))