123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185 |
- // switch: sizes
- let size = prompt("Enter your ukrainian size");
- switch (size){
- case "40": document.write("<div>American size - 6</div>");
- break;
- case "42": document.write("<div>American size - 8</div>");
- break;
- case "44": document.write("<div>American size - 10</div>");
- break;
- case "46": document.write("<div>American size - 12</div>");
- break;
- case "48": document.write("<div>American size - 14</div>");
- break;
- case "": document.write("<div>Size not specified</div>");
- break;
- default: document.write("<div>Not a size</div>");
- }
- // switch: if
- let color = prompt("Введите цвет");
- if (color === "red")
- {document.write("<div style='background-color: red;'>red</div>")}
- else if (color === "black")
- {document.write("<div style='background-color: black; color: white;'>black</div>")}
- else if (color === "blue")
- {document.write("<div style='background-color: blue; color: white;'>blue</div>")}
- else if (color === "green")
- {document.write("<div style='background-color: green; color: green ;'>green</div>")} else {document.write("<div style='background-color: gray;'>Not a color</div>")}
-
- // prompt: or(?)
- let age = prompt('сколько вам лет?');
- if (age === '' || age === null){
- alert('Error')}
- else {
- bornYear = 2022 - age;
- alert(`Вы ${bornYear} года`)
- }
-
- // confirm: or this days
- let qvest0 = confirm('Shoping?');
- alert( false || "ты бяка");
- // confirm: if this days
- let qvest = confirm('Shoping?');
- if (qvest === false){
- alert('Ты бяка')}
- // triple prompt
- let name = prompt('Enter your name');
- let surname = prompt('Enter your surname');
- let middleName = prompt('Enter your middle name')
- alert(name + ' ' + surname + ' ' + middleName);
- // default: or
- let defName = "Marko";
- let defSurname = "Volchenko";
- let defMiddleName = "Alexandrovich";
- let name1 = prompt("Enter your name") || defName;
- let surname1 = prompt("Enter your surname") || defSurname ;
- let middleName1 = prompt("Enter your middle name ") || defMiddleName;
- alert(name1 + " " + surname1 + " " + middleName1);
-
- // default: if
- let defName1 = 'Marko'
- let defSurname1 = 'Volchenko'
- let defMiddleName1 = 'Alexandrovich';
- let name2 = prompt("Enter your name")
- if (name2 === null || name2 === "") {
- name2 = defName1} else {name2};
- let surname2 = prompt("Enter your surname")
- if (surname2 === null || surname2 === "") {
- surname2 = defSurname1} else {surname2};
- let middleName2 = prompt("Enter your middlename")
- if (middleName2 === null || middleName2 === "") {
- middleName2 = defMiddleName1} else {middleName2};
- alert( name2 + ' ' + surname2 + ' ' + middleName2);
-
- // login and password
- let login = prompt('Enter your login');
- if (login === 'admin'){alert('Great!')}
- else {alert('Error')}
- let pass = prompt('Enter your password');
- if (pass === 'qwerty'){alert("Great!")}
- else{alert('Error')};
-
- // currency calc
- let currency = prompt("usd or eur?");
- let course;
- switch(currency){
- case 'usd':course = 36.65;
- break
- case 'eur':course = 37.95;
- break
- }
- let uah = prompt('How much hrivna?');
- let result = Math.floor(uah/course);
- alert(`You have ${result} currency`);
- // currency calc: improveds
- let currency0 = prompt("usd or eur?");
- let course0;
- switch(currency0.toLowerCase()){
- case 'usd':course0 = 36.65;
- break
- case 'eur':course0 = 37.95;
- break
- }
- let uah0 = prompt('How much hrivna?');
- let result0 = Math.floor(uah0/course0);
- alert(`You have ${result0} currency`);
- // currency calc: two rates
-
- let currency1 = prompt("usd or eur?");
- let currency2 = prompt('buy or sell?')
- let course1;
- let course2;
- switch(currency1 && currency2 ) {
- case 'usd' && 'sell':course1 = 37.03;
- break
- case 'eur' && 'sell':course1 = 37.87;
- break
- case 'usd' && 'buy':course2 = 36.65;
- break
- case 'eur' && 'buy':course2 = 37
- }
- let uah1 = prompt('How much hrivna?');
- let result1 = Math.floor(uah1/course1 || uah1/course2);
- alert(`You have ${result1} currency`);
-
- // currency calc: if
-
-
- let currency3 = prompt("usd or eur?");
- let currency4 = prompt('buy or sell?')
- let uah2 = prompt('How much hrivna?')
- if (currency3 == 'usd' && currency4 =='sell'){
- alert(`You have ${Math.floor(uah2/37.03)} $`)
- }else if (currency3 = 'eur' && currency4 == 'sell'){
- alert(`You have ${Math.floor(uah2/37.87)} €`)
- }else if (currency3 == 'usd' && currency4 =='buy'){
- alert(`You have ${Math.floor(uah2/36.65)} $`)}
- else if (currency3 = 'eur' && currency4 == 'buy'){
- alert(`You have ${Math.floor(uah2/37.47)} €`)}else;
-
-
-
-
- // scissors
- let myChoice = +prompt ('Enter your number 1-3: 1 - stone, 2 - scissors, 3 - paper')
- let compChoice = Math.ceil(Math.random()*3);
- alert(`Computer choice - ${compChoice}`);
- if (myChoice === 1 && compChoice === 2 || myChoice === 2 && compChoice === 3 || myChoice === 3 && compChoice === 1 ){
- alert('You win!')
- } else if (myChoice === 1 && compChoice === 3 || myChoice === 2 && compChoice === 1 || myChoice === 3 && compChoice === 2 ){
- alert('You lose!')} else
- {
- alert('Friendship!!!')
- }
-
-
|