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@@ -0,0 +1,141 @@
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+//switch: sizes
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+
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+let color = prompt("Введите размер", "");
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+switch (color){
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+ case "40": document.write("<div> AmericanSize - 6 </div>");
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+ break;
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+ case "42": document.write("<div> AmericanSize - 8 </div>");
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+ break;
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+ case "44": document.write("<div> AmericanSize - 10 </div>");
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+ break;
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+ case "46": document.write("<div> AmericanSize - 12 </div>");
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+ break;
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+ case "48": document.write("<div> AmericanSize - 14 </div>");
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+ break;
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+ case "50": document.write("<div> AmericanSize - 16 </div>");
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+ break;
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+ case "52": document.write("<div> AmericanSize - 18 </div>");
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+ break;
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+ case "54": document.write("<div AmericanSize - 20</div>");
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+ break;
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+ default: document.write("<div> Razmer ne ukazan </div>");
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+}
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+
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+
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+//switch: if
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+
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+let color1 = prompt("Введите цвет", "");
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+if (color1 === "red") {
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+ document.write("<div style='background-color: red;'>RED</div>");
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+}
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+else if (color1 === "black") {
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+ document.write("<div style='background-color: black; color: white;'>BLACK</div>");
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+}
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+else if (color1 === "blue") {
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+ document.write("<div style='background-color: blue; color: pink;'>BLUE</div>");
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+}
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+else if (color1 === "green") {
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+ document.write("<div style='background-color: black; color: red;'>GREEN</div > ");
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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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+
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+//prompt: or
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+
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+let year = prompt("Какого года вы рождения?")
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+if (year === "" || year === null) {
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+ alert("Вы бокопор!")
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+}
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+else {
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+ age = 2022 - year;
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+ alert(`Вам ${age} лет`);
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+}
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+
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+//confirm: or this days
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+
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+
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+
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+//confirm: if this days
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+let question = confirm("На шопинг ?") //? alert("GO") : alert("Сиди дома");
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+if (question === true) {
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+ alert("GO")
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+} else {
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+ alert("Сиди дома")
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+}
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+
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+
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+
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+// triple prompt
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+let name1 = prompt("Пиши имя");
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+let surname = prompt("Пиши фамилию");
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+let middleName = prompt("Пиши отчество")
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+alert(name1 + " " + surname + " " + middleName);
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+
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+
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+//default: or
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+
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+let nameDEF = "Vanek";
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+let surnameDEF = "Ivanov";
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+let middleNameDEF = "Ivanovich";
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+
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+let name2 = prompt("Пиши имя") || nameDEF;
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+let surname2 = prompt("Пиши фамилию") || surnameDEF ;
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+let middleName2 = prompt("Пиши отчество") || middleNameDEF;
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+
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+alert(name2 + " " + surname2 + " " + middleName2);
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+
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+//default: if
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+
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+/* let nameDEFo = "Vanek";
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+let surnameDEFo = "Ivanov";
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+let middleNameDEFo = "Ivanovich";
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+
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+let name3 = prompt("Пиши имя")
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+if (name3 === null || " ") {
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+ name3 = nameDEFo
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+}
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+
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+let surname3 = prompt("Пиши фамилию")
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+if (surname3 === null || " ") {
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+ surname3 = surnameDEFo
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+}
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+
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+let middleName3 = prompt("Пиши фамилию")
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+if (middleName3 === null || " ") {
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+ middleName3 = surnameDEFo
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+}
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+alert(name3 + " " + surname3 + " " + middleName3 ); */
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+
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+debugger
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+let nameDEFo = "Vanek";
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+let surnameDEFo = "Ivanov";
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+let middleNameDEFo = "Ivanovich";
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+
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+let name3 = prompt("Пиши имя")
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+if (name3 === null ) {
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+ name3 = nameDEFo
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+} else {
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+ name3
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+}
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+
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+let surname3 = prompt("Пиши фамилию")
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+if (surname3 === null ) {
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+ surname3 = surnameDEFo
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+} else {
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+ surname3
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+}
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+
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+let middleName3 = prompt("Пиши фамилию")
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+if (middleName3 === null ) {
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+ middleName3 = surnameDEFo
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+} else {
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+ middleName3
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+}
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+alert(name3 + " " + surname3 + " " + middleName3);
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+
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+
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+//
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+
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+
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+
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+
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