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@@ -0,0 +1,53 @@
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+let a = 5;
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+let b, c;
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+console.log(b)
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+b = a * 5;
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+console.log(b)
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+b = c = b / 2;
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+console.log(b, c)
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+
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+//semicolon: error
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+
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+// b = a * c console.log(b)
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+
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+//semicolon: mistake
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+
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+//Number: age
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+
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+let age ,
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+ date = new Date().getFullYear();
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+
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+do {
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+ age = prompt('Enter your age', '');
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+ if (age !== '' && age ) {
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+
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+ alert(`Год рождения: ${date - age}`);
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+ }
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+} while (age == '' || age == null);
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+
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+
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+//Number: temperature
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+
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+let tempCels = prompt('Enter tempereture', ''),
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+ tempFar = tempCels * 1.8 + 32;
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+alert(`In fahrenheit: ${tempFar} `);
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+
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+//Number: divide
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+
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+let num1Input = document.querySelector('.num1'),
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+ num2Input = document.querySelector('.num2'),
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+ calculateBtn = document.querySelector('.btn'),
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+ outer = document.querySelector('.outer');
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+
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+
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+calculateBtn.addEventListener('click', () => {
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+ let arg1 = +num1Input.value,
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+ arg2 = +num2Input.value;
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+
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+ if (arg1 && arg2) {
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+ let res = arg1 / arg2;
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+ outer.textContent = `${Math.floor(res)}`;
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+ } else {
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+ outer.textContent = `Enter correct number`;
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+ }
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+})
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serg155alternate