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@@ -0,0 +1,173 @@
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+let task = prompt('Введите название дз');
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+switch(task){
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+ case "size":
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+ let size = prompt("Введите размер");
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+ switch (size){
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+ case "40": alert("S");
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+ break;
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+ case "42" :alert("M");
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+ break;
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+ case "46": alert("L");
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+ break;
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+ case "50": alert("XL");
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+ break;
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+ case "54": alert("XXL");
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+ break;
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+ default:
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+ alert( 'Неизвестное значение' );
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+ }
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+ break;
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+
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+ case "switch":
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+ let color__ = prompt("Введите цвет","");
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+ switch (color__){
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+ case "red": document.write("<div style='background-color: red;'>красный</div>");
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+ case "black": document.write("<div style='background-color: black; color: white;'>черный</div>");
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+ break;
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+ case "blue": document.write("<div style='background-color: blue;'>синий</div>");
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+ case "green": document.write("<div style='background-color: green;'>зеленый</div>");
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+ break;
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+ default: document.write("<div style='background-color: gray;'>Я не понял</div>");
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+ }
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+ break;
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+
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+ case "if":
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+ let color = prompt("Введите цвет","");
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+ if(color === 'red'){
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+ document.write("<div style='background-color: red;'>красный</div>"),
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+ document.write("<div style='background-color: black; color: white;'>черный</div>");
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+ }
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+ else if(color === 'black'){
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+ document.write("<div style='background-color: black; color: white;'>черный</div>");
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+ }
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+ else if(color === 'blue'){
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+ document.write("<div style='background-color: blue;'>синий</div>"),
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+ document.write("<div style='background-color: green;'>зеленый</div>");
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+ }
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+ else if(color === 'green'){
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+ document.write("<div style='background-color: green;'>зеленый</div>");
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+ }
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+ else{
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+ document.write("<div style='background-color: gray;'>Я не понял</div>");
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+ }
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+ break;
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+
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+ case "prompt: or":
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+ let year;
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+ let age = prompt('введите возраст') || alert("Введите число!");
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+ year = 2021 - age;
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+ alert("Ваш год рождения:"+ year);
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+ break;
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+
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+ case "confirm: or this days":
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+ confirm('Шопинг?') ? alert("yes") : alert("ты - бяка")
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+ break;
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+
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+ case "if: or this days":
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+ let shoping = confirm('Шопинг?');
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+ if(shoping === true){
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+ alert('yes');
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+ }
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+ else{
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+ alert('ты - бяка');
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+ }
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+ break;
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+
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+ case "triple prompt":
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+ let surname = prompt('Ваша фамилия?') || ('иванов')
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+ let name = prompt('Введите имя') ||('вася')
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+ let patronymic = prompt('Введите отчество') || ('петрович')
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+ let out = surname + ' ' + name + ' ' + patronymic
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+ alert(out)
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+ break;
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+
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+ case "triple prompt__1":
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+ let surname__ = prompt('Ваша фамилия?')
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+ let name__ = prompt('Введите имя')
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+ let patronymic__ = prompt('Введите отчество')
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+ if(surname__ !== null || name__ !== null || patronymic__ !== null) {
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+ let out = surname__ + ' ' + name__ + ' ' + patronymic__
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+ alert(out);
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+ }
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+ else{
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+ alert('Иванов Вася Петрович');
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+ }
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+ break;
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+
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+ case "login and password":
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+ let username = prompt("Введите логин")
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+ let password = prompt('Введите пароль')
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+ if ((username === 'admin') && (password === 'qwerty')) {
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+ alert("Добро пожаловать");
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+ }
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+ else {
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+ alert('Неверный пароль или логин');
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+ }
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+ break;
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+
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+ case "currency calc":
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+ let ratios = {
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+ usd: 25.6,
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+ eur: 29
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+ };
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+ let obmenik = prompt('usd or eur?').toLowerCase();
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+ switch(obmenik){
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+ case 'usd':
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+ let choose = prompt('buy or sell?').toLowerCase();
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+ if (choose === 'buy') {
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+ let grnUsd = +prompt('Введите величину в гривне');
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+ let usdgrn = grnUsd / ratios['usd'];
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+ alert(Math.round(usdgrn*100)/100 + " долларов");
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+ }
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+ else if (choose === 'sell') {
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+ let grnUsd = +prompt('Введите величину в долларах');
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+ let usdgrn = grnUsd * ratios['usd'];
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+ alert(Math.round(usdgrn*100)/100 + " грн");
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+ }
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+ break;
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+ case 'eur':
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+ let choose__1 = prompt('buy or sell?').toLowerCase();
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+ if (choose__1 === 'buy') {
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+ let grnEur = +prompt('Введите сумму в гривне');
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+ let eurgrn = grnEur / ratios['eur'];
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+ alert(Math.round(eurgrn *100)/100 + " евро");
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+ }
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+ else if (choose__1 === 'sell') {
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+ let grnEur = +prompt('Введите сумму в евро');
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+ let eurgrn = grnEur * ratios['eur'];
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+ alert(Math.round(eurgrn *100)/100 + " грн");
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+ }
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+ break;
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+ default: alert("Ошибка");
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+ }
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+ break;
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+
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+ case "scissors":
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+ let user = prompt("Камень? Бумага? Ножницы?").toLowerCase();
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+ let computer = Math.random()
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+ if (computer < 0.34) {
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+ computer = "Камень";
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+ }
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+ else if(computer < 0.67) {
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+ computer = "Бумага";
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+ }
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+ else {
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+ computer = "Ножницы";
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+ }
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+ alert(computer);
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+
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+ if (user == "камень" && computer == "ножницы" || user =="ножницы" && computer == "бумага" || user =="бумага" && computer == "камень") {
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+ alert("Вы победили!");
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+ }
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+ else if (user =="ножницы" && computer == "камень" || user == "бумага" && computer =="ножницы" || user =="камень" && computer == "бумага")
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+ {
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+ alert("Вы проиграли.");
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+ }
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+ else {
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+ alert("Победила дружба!");
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+ }
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+ break;
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+}
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+
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+
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+
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Прохор Антропов