{ var a = 5; var b, c; b = (a * 5) b = (c = (b / 2)) } { const year = new Date().getFullYear(); const age = prompt("How old are you?") age === null ? alert('Please enter your age') : alert(year - age) } { const celsius = +prompt('what is the temperature in celsius ?') const fahrenheit = celsius * 1.8 + 32; alert('Faringate temperature ' + fahrenheit) } { const numberOne = +prompt('Please, enter number one') const numberTwo = +prompt('Please, enter number two') alert(numberOne / Math.floor(numberTwo)) } { const number = +prompt('Please, enter number ') if (isNaN(number)) { alert('Please, enter number correct') } else if (number % 2 === 0) { alert('number is even') } else { alert('number is odd') } } { const name = prompt("what's your name?") alert('Hi, ' + name) } { const word = prompt('Enter a word ') word.includes('dniwe') ? alert('Plese enter correct a word') : alert(word) } { const checkDrunk = confirm('Are you drunk?') console.log(checkDrunk); const checkMarried = confirm("are you married?") if (checkMarried) { alert('married') } else { alert('not married') } let myArray = ['Vodka', 'Cognac', 'Whiskey', 'Beer', 'Rum'] const newArray = [...myArray, checkDrunk, checkMarried] console.log(newArray); const arrayPlus = newArray[0] + newArray[1] console.log(arrayPlus); myArray[2] = arrayPlus console.log(myArray); } { let myNotebook = { model: 'Asus', seria: 'n53', age: '2011', batteryСharge: 78, userName: 'Maxim' } console.log(myNotebook); myNotebook.model = 'Acer' myNotebook['userName'] = 'Viktoria' console.log(myNotebook); } { var age = +prompt("Сколько вам лет?", ""); if (age < 18) { alert("школьник"); } else { if (age < 30) { alert("молодеж"); } else { if (age < 45) { alert("зрелость"); } else { if (age < 60) { alert("закат"); } else { if (age > 60) { alert("как пенсия?"); } else { alert("то ли киборг, то ли ошибка"); } } } } } } { const size = prompt('enter size S, M, L, XL, XXL') if (size === 'S') { alert('Russian size 40') } else if (size === 'M') { alert('Russian size 42') } else if (size === 'L') { alert('Russian size 46') } else if (size === 'XL') { alert('Russian size 50') } else if (size === 'XXL') { alert('Russian size 54') } else { alert('Please, enter correct size S, M, L, XL, XXL') } } { const convectSize = { S: 40, M: 42, L: 46, XL: 50, XXL: 54 } const size = prompt('enter size S, M, L, XL, XXL').toLocaleUpperCase() if (size === 'S' || size === 'M' || size === 'L' || size === 'XL' || size === 'XXL') { alert('Russian size ' + convectSize[size]) } else { alert('Please, enter correct size S, M, L, XL, XXL') } } { confirm('Are you man?') ? alert('You are man') : alert(' You are woman') } { const floors = 9 const apartmentsInTheFloor = 4 const numberApartment = 81 const apartmentsEntrance = (floors * apartmentsInTheFloor) const resultEntrance = Math.ceil(numberApartment / apartmentsEntrance) const remainderApartment = numberApartment % apartmentsEntrance const resultFlors if (remainderApartment === 0) { resultFlors = Math.ceil((remainderApartment + apartmentsEntrance) / apartmentsInTheFloor) console.log("подьезд " + resultEntrance, "этаж " + resultFlors1); } else { resultFlors = Math.ceil(remainderApartment / apartmentsInTheFloor) console.log("подьезд " + resultEntrance, "этаж " + resultFlors); } }