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@@ -1,29 +1,29 @@
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-//assign: evaluation
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+// //assign: evaluation
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var a = 5;
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var a = 5;
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var b, c;
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var b, c;
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-//if we delete brackets functionality is same
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-// b = (a * 5);
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-// b = (c = b/2);
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-// a = 5
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-// b = 12,5
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-// c = 12,5
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+// //if we delete brackets functionality is same
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+// // b = (a * 5);
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+// // b = (c = b/2);
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+// // a = 5
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+// // b = 12,5
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+// // c = 12,5
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//one line variant
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//one line variant
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c = b = (a * 5) / 2;
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c = b = (a * 5) / 2;
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-// forgot one semicolon!
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-// for(let i = 0 i < 5; i++) {
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-// console.log(i)
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-// }
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-// wrong usage of semicolon
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-//let a; b = 5;
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-//b = 5 c = b + 1;
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+// // forgot one semicolon!
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+// // for(let i = 0 i < 5; i++) {
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+// // console.log(i)
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+// // }
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+// // wrong usage of semicolon
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+// //let a; b = 5;
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+// //b = 5 c = b + 1;
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-//semicolon logic errors
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-// if(a === 5) {
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-// console.log('FIVE!')
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-// }else; console.log('not five(')
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+// //semicolon logic errors
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+// // if(a === 5) {
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+// // console.log('FIVE!')
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+// // }else; console.log('not five(')
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//GET YEAR TASK:
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//GET YEAR TASK:
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function getAge(age, currentYear = new Date().getFullYear()) {
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function getAge(age, currentYear = new Date().getFullYear()) {
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@@ -98,14 +98,12 @@ function oddInformer() {
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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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-oddInformer()
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//greet user using alert() and prompt()
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//greet user using alert() and prompt()
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function greeting() {
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function greeting() {
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let name = prompt("Hey user, what's your name")
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let name = prompt("Hey user, what's your name")
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alert(`Hello, ${name? name : 'Namless One...'}`)
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alert(`Hello, ${name? name : 'Namless One...'}`)
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}
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}
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-greeting()
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//check if text contains desired words
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//check if text contains desired words
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function lexis(string, word) {
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function lexis(string, word) {
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@@ -114,4 +112,142 @@ function lexis(string, word) {
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} else {
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} else {
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return false
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return false
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}
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}
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-}
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+}
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+
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+let quest1 = confirm('are you a human being?')
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+let quest2 = confirm('can you fly?')
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+
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+if(quest1) {
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+ if(quest2) {
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+ alert('wow, you are Superman!')
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+ } else {
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+ alert('Congrats, you are a real human being...')
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+ }
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+} else {
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+ if(quest2) {
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+ alert('so u must be a bird or smth :/')
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+ } else {
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+ alert('is machine spirit talking to me?')
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+ }
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+}
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+
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+let inMyBag = ['shoes', 'shorts', 'shirt', 'laptop', 'charger', 'copybook', 'pen', 'water-bottle']
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+let answers = [quest1, quest2]
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+
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+//toying with arrays
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+let plus = [1, 2]
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+plus[2] = plus[0] + plus[1]
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+console.log(plus)
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+
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+let plusStr = ['hello', 'My', 'World',]
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+plusStr[plusStr.length] = plusStr[0] + plusStr[1] + plusStr[2]
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+console.log(plusStr)
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+
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+//toying with objects
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+let keyboard = {
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+ model: 'sven slim 303',
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+ type: 'membrane',
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+ price: '5$'
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+}
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+
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+let guitar = {
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+ type: 'electric',
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+ form: 'stratocaster',
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+ strings: 6,
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+ manufacturer: 'Fender'
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+}
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+
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+keyboard.price = '10$'
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+guitar['form'] = 'telecaster'
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+
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+//add brackets
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+var age = +prompt("Сколько вам лет?","");
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+if (age < 18 && age > 0){
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+ alert("школьник");
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+} else {
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+ if (age >= 18 && age < 30){
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+ alert("молодежь");
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+ } else {
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+ if (age >= 30 && age < 45){
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+ alert("зрелость");
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+ } else {
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+ if (age >= 45 && age < 60){
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+ alert("закат");
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+ } else {
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+ if (age >= 60 && age <= 150 ) {
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+ alert("как пенсия?");
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+ } else {
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+ alert("то ли киборг, то ли ошибка");
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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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+//Comparison: sizes
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+let rusSize = prompt('Введите НАШ формат размера для переводa на на Американский формат','')
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+let usSize = [
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+ {
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+ number: [6],
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+ men: 'S',
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+ woman:['XXS']
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+ },
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+ {
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+ number: [8, 10],
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+ men: 'M',
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+ woman:['XXS', 'XS']
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+ },
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+ {
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+ number: [12, 14],
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+ men: 'L',
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+ woman:['S', 'M']
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+ },
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+ {
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+ number: [16, 18],
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+ men: 'XL',
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+ woman:['L','XL']
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+ },
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+ {
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+ number: [20, 22],
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+ men: 'XXL',
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+ woman:['XXL', 'XXXL']
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+ },
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+]
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+
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+if(+rusSize && +rusSize >= 40 && +rusSize <= 56) {
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+ rusSize = +rusSize
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+ let flag = 0
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+ if(rusSize % 2 !== 0) {
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+ rusSize--
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+ flag++
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+ }
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+ for(let i = 0; i < usSize.length; i++) {
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+ let temp = usSize[i].number.findIndex(element => { return element === (rusSize - 34)})
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+ if(temp >= 0) {
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+ alert(`
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+ ${rusSize+flag}-й размер в американском формате:
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+ ------------------------------------------
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+ Размер: ${usSize[i].number[temp]}
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+ Мужчины: ${usSize[i].men}
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+ Женщины: ${usSize[i].woman[temp]}
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+ ------------------------------------------
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+ `)
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+ break;
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+ }
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+ }
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+} else {
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+ alert('Неправильный размер.')
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+}
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+
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+//Ternary
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+alert(`${confirm('Вы мужчина?')? 'Вы мужчина.':'Вы женщина.'}`)
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+
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+//flats
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+function flats(floors, flatsPerFloor, flatNumber) {
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+ let info = {
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+ flat: flatNumber,
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+ building: Math.ceil(flatNumber/(floors * flatsPerFloor)),
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+ }
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+ info.floor = flatNumber/flatsPerFloor > floors? Math.ceil(flatNumber/flatsPerFloor)-floors*(info.building-1) : Math.ceil(flatNumber/flatsPerFloor);
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+ return info;
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+}
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