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@@ -0,0 +1,48 @@
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+// Calc
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+ let isRightList = '';
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+ let purchaseAmount = '';
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+ do {
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+ let milk = prompt('Please, enter the number of how many cartons of milk you need') // составляем список продуктов
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+ let bread = prompt('Please, enter the number of how many bread you need')
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+ let meat = prompt('Please, enter the number of how many kilograms of meat you need')
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+ let watermelon = prompt('Please, enter the number of how many watermelons you need')
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+ let watermelonWeight = prompt('Please, enter the number of how many kilograms you want the watermelon to weight')
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+ let eggs = prompt('Please, enter the number of how many eggs you need')
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+ let rice = prompt('Please, enter the number of how many kilograms of rice you need')
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+ let cucumbers = prompt('Please, enter the number of how many kilograms of cucumbers you need')
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+ isRightList = confirm('You need milk ' + milk + ' cartons, bread ' + bread + ', meat' + meat + ' kilograms, watermelons ' + watermelon + ', eggs ' + eggs + ' pieces, rice ' + rice + ' kilograms, cucumbers ' + cucumbers + ' kilograms. Is it right?') // проверяем правильно ли составлен список
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+ let milkPrice = 25 * milk;
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+ let breadPrice = 11 * bread;
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+ let waterMelonPrice = 6 * watermelon * watermelonWeight; // рассчитываем стоимость арбуза
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+ let eggsPrice = 2 * eggs;
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+ let ricePrice = 27 * rice;
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+ let cucumberPrice = 30 * cucumbers;
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+ purchaseAmount = milkPrice + breadPrice + waterMelonPrice + eggsPrice + ricePrice + cucumberPrice; // рассчитываем общую стоимость покупки
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+ } while (isRightList === false);
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+ alert('Your purchase amount is ' + purchaseAmount + ' UAH')
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+// Задание на синий пояс
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+var credentials = {
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+ login: 'admin',
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+ password: 'qwerty',
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+};
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+let loginField = document.getElementById('login');
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+let passwordField = document.getElementById('password');
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+document.getElementById('check').onklick = function(event) {
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+
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+ if (loginField.value === credentials.login && passwordField.value === credentials.password) {
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+ loginField.classList.toggle('input:valid')
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+ passwordField.classList.toggle('input:valid')
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+ loginField.classList.remove('input:invalid')
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+ passwordField.classList.remove('input:invalid')
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+ alert('Congratulations!');
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+ } else {
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+ loginField.classList.toggle('input:invalid')
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+ passwordField.classList.toggle('input:invalid')
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+ loginField.classList.remove('input:valid')
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+ passwordField.classList.remove('input:valid')
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+ alert('Error!');
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+ }
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+}
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+form.addEventListener('submit', function(event) {
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+ event.preventDefault()
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+})
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