Lesson3

hw3-1.html

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+<meta charset="UTF-8">
+
+<script>
+    let a = [
+        [{ name: 'Mary', age: 23 }, { name: 'Mike', age: 45 }, { name: 'Nick', age: 11 }],
+        [{ name: 'Adam', age: 56 }, { name: 'Sara', age: 21 }, { name: 'Don', age: 22 }],
+        [{ name: 'Karl', age: 34 }, { name: 'Marta', age: 76 }, { name: 'John', age: 19 }]
+    ];
+
+    let b = a.concat();
+
+    b[0] = 'apple';//для проверки
+
+    console.log(a);
+    console.log(b);
+
+
+</script>

hw3-2.html

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+<meta charset="UTF-8">
+
+<script>
+    let basket = [
+        { name: 'стул', price: 1200, amount: 4 },
+        { name: 'стол', price: 5000, amount: 1 },
+        { name: 'кресло', price: 4000, amount: 2 }
+    ]
+
+    function countBasketPrice(basket) {
+        var priceSum = 0;
+        for (i in basket) {
+            let finalPrice = basket[i].price * basket[i].amount;
+            priceSum += finalPrice;
+        }
+        console.log(priceSum);
+    }
+
+    countBasketPrice(basket);
+
+
+</script>

hw3-3.html

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+<meta charset="UTF-8">
+
+<script>
+for(let i = 0; i<=9; alert(i++));   
+</script>

hw3-4.html

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+<meta charset="UTF-8">
+
+<script>
+
+    let arr = [];
+
+    while (arr.length < 20) {
+        arr.push('x');
+        console.log(arr.join(''));
+    }
+
+</script>