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@@ -0,0 +1,206 @@
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+//switch: if
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+var 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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+
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+//prompt: or
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+var UserAge = prompt('Enter your age') || alert('You didn`t enter age');
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+alert(UserAge);
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+var NowYear = prompt('Which year now?', [2020]);
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+var UserBirthdayYear = NowYear - UserAge;
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+alert(UserBirthdayYear);
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+
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+
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+//confirm: or this days
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+var ask = confirm('Шоппинг?') || alert('Ты бяка');
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+
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+
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+//confirm: if this days
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+var ask = confirm('Шоппинг?');
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+if(!ask){
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+ alert('Ты бяка');
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+}
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+else{
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+ alert('Наконец-то!');
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+}
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+
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+// triple prompt
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+var Name = prompt('Enter your name',"");
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+var MiddleName = prompt('Enter your middle name',"");
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+var Surname = prompt('Enter your surname',"");
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+alert(Name + MiddleName + Surname);
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+
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+//default: or
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+var Name = prompt('Enter your name',"") || 'Иван';
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+var MiddleName = prompt('Enter your middle name',"") || 'Иванович';
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+var Surname = prompt('Enter your surname',"") || 'Иванов';
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+alert(Name + MiddleName + Surname);
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+
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+// default: if
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+var Name = prompt('Enter your name',"");
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+if(!Name){
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+ var Name = 'Иван';
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+}
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+else{
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+}
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+var MiddleName = prompt('Enter your middle name',"")
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+if(!MiddleName){
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+ var MiddleName = 'Иванович'
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+}
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+else{
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+}
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+var Surname = prompt('Enter your surname',"")
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+if(!Surname){
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+ var Surname = 'Иванов';
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+}
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+else{
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+}
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+alert(Name + MiddleName + Surname);
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+
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+// login and password
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+var Login = "admin";
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+var Password = "qwerty";
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+var Login = prompt("Введите логин");
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+if( Login !== "admin"){
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+ alert("Вы введи неправильный логин");
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+}
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+else{
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+ var Password = prompt("Введите пароль");
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+ if(Password !== "qwerty"){
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+ alert("Вы введи неправильный пароль");
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+ }
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+ else{
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+ alert("Поздравляю, вы прошли аутентификацию");
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+ }
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+}
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+
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+var 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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+
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+
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+//currency calc
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+var Value = prompt("Введите валюту", ["usd", "eur"]);
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+switch(Value){
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+ case "usd": Value = 27;
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+ break;
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+ case "eur": Value = 30;
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+}
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+var HowMuch = prompt("Введите величину(в гривнах)?");
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+var Result = HowMuch / Value;
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+alert(Result);
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+
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+// currency calc: improved
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+var Value = prompt("Введите валюту", ["usd", "eur"]);
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+switch(Value.toLowerCase()){
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+ case "usd": Value = 27;
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+ break;
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+ case "eur": Value = 30;
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+}
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+var HowMuch = prompt("Введите величину(в гривнах)?");
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+var Result = HowMuch / Value;
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+alert(Result);
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+
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+//currency calc: two rates
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+// var Value = prompt("Введите валюту", ["usd", "eur"]);
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+// var Method = confirm('Нажмите "Ок" если Вас интересует "Покупка", "Cancel" если Вас интересует "Продажа"');
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+// var Method = true ?
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+// switch(Value.toLowerCase()){
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+// case "usd": Value = 28;
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+// break;
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+// case "eur": Value = 32;
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+// } :
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+// switch(Value.toLowerCase()){
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+// case "usd": Value = 27;
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+// break;
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+// case "eur": Value = 30;
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+// }
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+// var HowMuch = prompt("Введите величину(в гривнах)?");
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+// var Result = HowMuch / Value;
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+// alert(Result);
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+
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+
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+//currency calc: if
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+var Value = prompt("Введите валюту", ["usd", "eur"]);
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+var Method = confirm('Нажмите "Ок" если Вас интересует "Покупка", "Cancel" если Вас интересует "Продажа"');
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+if (Method){
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+ switch(Value.toLowerCase()){
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+ case "usd": Value = 28;
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+ break;
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+ case "eur": Value = 32;
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+ }
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+}else{
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+ switch(Value.toLowerCase()){
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+ case "usd": Value = 27;
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+ break;
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+ case "eur": Value = 30;
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+ }
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+}
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+var HowMuch = prompt("Введите величину(в гривнах)?");
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+var Result = HowMuch / Value;
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+alert(Result);
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+
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+//scissors
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+var Human = prompt('Введите значение из возможных', ["Paper", "Scissors", "Stone"]);
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+alert(Human);
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+var Comp = Math.floor(Math.random() * 3);
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+if(Comp == 0){
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+ alert("Paper");
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+}
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+else if(Comp == 1){
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+ alert("Scissors");
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+}
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+else{
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+ alert("Stone");
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+}
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+var Result = Comp + Human;
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+console.log(Result);
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+if(Result == "0Paper"){
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+ alert('Ничья');
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+}
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+else if(Result == "0Scissors"){
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+ alert('Scissors');
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+}
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+else if(Result == "0Stone"){
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+ alert('Paper');
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+}
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+else if(Result == "1Paper"){
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+ alert('Scissors');
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+}
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+else if(Result == "1Scissors"){
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+ alert('Ничья');
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+}
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+else if(Result == "1Stone"){
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+ alert('Stone');
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+}
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+else if(Result == "2Paper"){
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+ alert('Paper');
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+}
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+else if(Result == "2Scissors"){
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+ alert('Stone');
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+}
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+else if(Result == "2Stone"){
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+ alert('Ничья');
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+}
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