class-4-logic ternary loop

// let num = 10
//increment
// num = num + 1
// num += 1
// num++

// // decrement
// num = num - 1
// num -= 1
// num--

// console.log(num++)
// console.log(num)
// console.log(++num)
// console.log(num)

//falsy values
//false
//0
//undefined
//NaN
//''

//truthy values
//other than falsy values

//how to check truthy or falsy values
// console.log(!!'')
// console.log(!!NaN)
// console.log(!!false)
// console.log(!!18)

// const age = 18

// if (age === 18) {
//   console.log('you can vote')
// } else {
//   console.log("you can't vote")
// }

//logical AND(&&)
// const result = age === 19 && 'you can vote'
// console.log(result)

//ternary operator
// age === 18 ? console.log('you can vote') : console.log('you can\'t vote')

// const age = 20
// // console.log(age >= 18 && age)
// //multiple if else if(use switch)
// switch (age) {
//   case age >= 18 && age <= 21 && age:
//     console.log('you can vote')
//     break
//   case 15:
//     console.log("you can't vote")
//     break
//   default:
//     console.log('You are of unknown age')
// }

//loop (repetition)
//for,while

// let arr = ['a', 'b', 'c', 'd']


// arr[0]
// arr[1]
//simple for loop
// for (let i = 0; i < arr.length; i++) {
//   console.log(i)
//  console.log(arr[i])

// }
//for of loop
// for(let elm of arr){
//   console.log(elm)
// }

//while loop
// let i = 0
// while (i < arr.length) {
//   console.log(arr[i])
//   i++
// }

//break and continue
// for (let i = 0; i < 10; i++) {

//   if(i === 7){
//     break
//   }
//   console.log(i)
//   let number = i + 1
//   console.log(`we love bangladesh ${number} ${number >= 1 ? 'times' : 'time'}`)
// }