logical && ||, conditionals, loop introduction

//logical AND(&&) OR(||) operator
//logical Not(!)
//short circuit
//if, else, else if
//ternary
//switch

//truthy and falsy value
//Boolean (true , false)
//truthy or falsy

//falsy value
//false
//0
//''
//undefined
//null
//NaN

//!(logical not)
// console.log(!!false)
// console.log(!!'')
// console.log (Boolean(''))

//truthy (other than falsy value)

//if else if else
// const age = 17
// if(age >= 18){
//     console.log('you can vote')
// }else{
//     console.log('you can not vote')
// }

//alternative (ternary)
// const result = age >= 18 ?  'you can vote' :  'you can not vote'
// console.log(result)

// age === 18 = true
//18 === true

// console.log(age >= 18 && age)
// switch(true){
//     case age >= 18:
//     console.log('you can vote')
//     break
//     case 19:
//     console.log('you are 19')
//     break
//     default:
//     console.log('unknown')
// }


//logical AND(&&) OR(||) operator

//&& - result true when every part is true
//otherwise false
//short circuit
// console.log(true && true && true)
// console.log(true && false && true) //short circuit
// console.log(true && false && false) //short circuit

// const showMessage = false
// console.log(showMessage && 'Hello world')


//logical OR(||)
// if any part is true result will be true
//otherwise false
// console.log(false || false || true)
// console.log(false || false || false)
// console.log(false || true || false) //short circuit
// console.log(true || true || true)//short circuit

// const showMessage = false
// console.log(showMessage || 'Hello world')
// console.log(showMessage || '')



//loop -repetition
// for(init; condition; incrementordecrement+){
//     //output
// }


//for loop
// for(let i = 0; i < 10; i++ ){
//     console.log(`Hello world ${i + 1} ${i + 1 < 2 ? 'time': 'times'}`)
// }

//while loop
// let i = 0
// while(i < 10){
//     console.log(`Hello world ${i + 1} ${i + 1 < 2 ? 'time': 'times'}`)
//     i++
// }



//10 times
// console.log('Hello world')
// console.log('Hello world')
// console.log('Hello world')
// console.log('Hello world')
// console.log('Hello world')
// console.log('Hello world')
// console.log('Hello world')
// console.log('Hello world')