ilya_shyian
/
homework


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360
							<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
    </head>
    <body>
        <script>
            //SWITCH: SIZES -----------------------------------------------------------------------
            function switchSizes() {
                let size = +prompt("enter size to covert (Russia => USA )");

                switch (size) {
                    case 40:
                        alert("S");
                        break;
                    case 42:
                    case 44:
                        alert("M");
                        break;
                    case 46:
                    case 48:
                        alert("L");
                        break;
                    case 50:
                    case 52:
                        alert("XL");
                        break;
                    case 54:
                        alert("XLL");
                        break;
                    default:
                        alert("Incorrect size");
                }
            }

            //SWITCH: IF -----------------------------------------------------------------------
            function switchIF() {
                let color = prompt("Введите цвет", "");

                if (color == "red") {
                    document.write("<div style='background-color: red;'>красный</div>");
                    document.write("<div style='background-color: black; color: white;'>черный</div>");
                } else if (color == "black") {
                    document.write("<div style='background-color: black; color: white;'>черный</div>");
                } else if (color == "blue") {
                    document.write("<div style='background-color: blue;'>синий</div>");
                    document.write("<div style='background-color: green;'>зеленый</div>");
                } else if (color == "green") {
                    document.write("<div style='background-color: green;'>зеленый</div>");
                } else {
                    document.write("<div style='background-color: gray;'>Я не понял</div>");
                }
            }

            //PROMPT: OR -----------------------------------------------------------------------
            function promptOR() {
                +prompt("How old are you") || alert("error: incorrect age");
            }

            //CONFIRM: OR THIS DAYS -----------------------------------------------------------------------

            function confirmOR() {
                confirm("шопинг?") || alert("ты - бяка");
            }

            //CONFIRM: IF THIS DAYS -----------------------------------------------------------------------

            function confirmIF() {
                let isShoping = confirm("шопинг?");

                if (isShoping === false) {
                    alert("ты - бяка");
                }
            }

            //TRIPLE PROMPT -----------------------------------------------------------------------
            function triplePrompt() {
                let surname = prompt("Фамилия");
                let name = prompt("Имя");
                let patronymic = prompt("Отчество");

                alert(` ${surname} ${name} ${patronymic}`);
            }

            //DEFAULT: OR -----------------------------------------------------------------------

            function defaultOR() {
                let surname = prompt("Фамилия") || "Иванов";
                let name = prompt("Имя") || "Иван";
                let patronymic = prompt("Отчество") || "Иванович";
                alert(` ${surname} ${name} ${patronymic}`);
            }

            //DEFAULT: IF -----------------------------------------------------------------------

            function defaultIF() {
                let surname = prompt("Фамилия") || "Иванов";
                let name = prompt("Имя") || "Иван";
                let patronymic = prompt("Отчество") || "Иванович";

                if (!surname) {
                    surname = "Иванов";
                }
                if (!name) {
                    name = "Иван";
                }
                if (!surname) {
                    patronymic = "Иванович";
                }

                alert(` ${surname} ${name} ${patronymic}`);
            }

            //LOGIN AND PASSWORD -----------------------------------------------------------------------

            function loginAndPassword() {
                while (true) {
                    let login = prompt("login");

                    if (login && login === "admin") {
                        let password = prompt("password");
                        if (password && password === "qwerty") {
                            alert("successfull login");
                            break;
                        } else {
                            alert("password is incorrect");
                            continue;
                        }
                    } else {
                        alert("login is incorrect");
                        continue;
                    }
                }
            }

            //CURRENCY CALC -----------------------------------------------------------------------

            function currencyCalc() {
                let currency = prompt("Enter currency to convert(usd/eur)");
                let rate = 1;
                let amount = +prompt("Amount to convert");
                switch (currency) {
                    case "usd":
                        rate = 26.2;
                        break;
                    case "eur":
                        rate = 30;
                        break;
                }
                if (amount && amount > 0) {
                    alert(amount / rate).toFixed(3);
                } else {
                    alert("error");
                }
            }

            //CURRENCY CALC: IMPROVED -----------------------------------------------------------------------

            function currencyCalcImp() {
                let currency = prompt("Enter currency to convert(usd/eur)").toLowerCase();
                let rate = 1;
                let amount = +prompt("Amount to convert");
                switch (currency) {
                    case "usd":
                        rate = 26.2;
                        break;
                    case "eur":
                        rate = 30;
                        break;
                }
                if (amount && amount > 0) {
                    alert(amount / rate).toFixed(3);
                } else {
                    alert("error");
                }
            }

            //CURRENCY CALC: TWO RATES -----------------------------------------------------------------------

            function currencyCalcTwo() {
                let selling = confirm("Convert on selling rates?");
                let currency = prompt("Enter currency to convert(usd/eur)").toLowerCase();
                let rate = 1;
                let amount = +prompt("Amount to convert");
                switch (currency) {
                    case "usd":
                        rate = selling ? 26.23 : 26.14;
                        break;
                    case "eur":
                        rate = selling ? 29.99 : 29.83;
                        break;
                }
                if (amount && amount > 0) {
                    alert(amount / rate).toFixed(3);
                } else {
                    alert("error");
                }
            }

            //CURRENCY CALC: IF -----------------------------------------------------------------------

            function currencyCalcIF() {
                let selling = confirm("Convert on selling rates?");
                let currency = prompt("Enter currency to convert(usd/eur)").toLowerCase();
                let rate = 1;
                let amount = +prompt("Amount to convert");

                if (selling) {
                    if (currency === "usd") {
                        rate = 26.23;
                    }
                    if (currency === "eur") {
                        rate = 29.99;
                    }
                } else {
                    if (currency === "usd") {
                        rate = 26.14;
                    }
                    if (currency === "eur") {
                        rate = 29.83;
                    }
                }

                if (amount && amount > 0) {
                    alert(amount / rate).toFixed(3);
                } else {
                    alert("error");
                }
            }

            //SCISSORS -----------------------------------------------------------------------

            function scissors() {
                let chose = prompt("Make ur choise").toLowerCase();
                let aiChose = "";
                let random = Math.random();

                if (random <= 0.33) {
                    aiChose = "камень";
                } else if (aiChose <= 0.66) {
                    aiChose = "ножницы";
                } else {
                    aiChose = "бумага";
                }

                console.log(aiChose);

                if (chose === aiChose) {
                    alert("ничья");
                } else if (
                    (chose === "камень" && aiChose === "бумага") ||
                    (chose === "бумага" && aiChose === "ножницы") ||
                    (chose === "ножницы" && aiChose === "камень")
                ) {
                    alert("You lose");
                } else {
                    alert("You win");
                }
            }

            //ЗАДАНИЕ НА СИНИЙ ПОЯС -----------------------------------------------------------------------
            function blue() {
                let rates = {};
                let currency = prompt("Enter currency to convert(usd/eur)").toLowerCase();
                let amount = +prompt("Amount to convert");
                fetch("https://open.er-api.com/v6/latest/UAH")
                    .then((res) => res.json())
                    .then((data) => {
                        rates["usd"] = data.rates.USD;
                        rates["eur"] = data.rates.EUR;
                    })
                    .then(() => {
                        if (amount && amount > 0) {
                            alert((amount * rates[currency]).toFixed(3));
                        } else {
                            alert("error");
                        }
                    });
            }

            //ДОПОЛНИТЕЛЬНОЕ ЗАДАНИЕ -----------------------------------------------------------------------

            while (true) {
                let task = prompt("Enter task name or leave blank to stop", "").toLowerCase();
                if (task) {
                    switch (task) {
                        case "switch: sizes":
                            switchSizes();
                            break;
                        case "switch: if":
                            switchIF();
                            break;
                        case "prompt: or":
                            promptOR();
                            break;
                        case "confirm: or this days":
                            confirmOR();
                            break;
                        case "confirm: if this days":
                            confirmIF();
                            break;
                        case "triple prompt":
                            triplePrompt();
                            break;
                        case "default: if":
                            defaultIF();
                            break;
                        case "default: or":
                            defaultOR();
                            break;
                        case "login and password":
                            loginAndPassword();
                            break;
                        case "currency calc":
                            currencyCalc();
                            break;
                        case "currency calc: improved":
                            currencyCalcImp();
                            break;
                        case "currency calc: two rates":
                            currencyCalcTwo();
                            break;
                        case "currency calc: if":
                            currencyCalcIF();
                            break;
                        case "scissors":
                            scissors();
                            break;
                        case "задание на синий пояс":
                            blue();
                            break;
                        case "задание на черный пояс":
                            black();
                            break;
                    }
                } else {
                    break;
                }
            }

            //ЗАДАНИЕ НА ЧЕРНЫЙ ПОЯС -----------------------------------------------------------------------
            function black() {
                let choise = prompt("Make ur choise").toLowerCase();
                let random = Math.random();
                (choise === "камень" && random <= 0.33) ||
                (choise === "ножницы" && random > 0.33 && random <= 0.66) ||
                (choise === "бумага" && random > 0.66)
                    ? alert("ничья")
                    : (choise === "камень" && random > 0.66) ||
                      (choise === "ножницы" && random <= 0.33) ||
                      (choise === "бумага" && random > 0.33 && random <= 0.66)
                    ? alert("You lose")
                    : alert("You win");
            }
        </script>
    </body>
</html>