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Balashov NikitaOlegLustenko
Balashov Nikita
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OlegLustenko
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Task4
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‎js-core/classworks/classwork-3/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Class work 3</title>
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</head>
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<body>
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<script src="src/main.js"></script>
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</body>
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</html>

‎js-core/classworks/classwork-3/src/main.js‎

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//alert(`hello world`);
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//prompt(`What is your name: `, `Your Name`);
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//confirm(`Do you like it: `);
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// TASK 1
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//let firstValue = Number(prompt('Enter first number'));
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//let secondValue = Number(prompt('Enter second number'));
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//let sum = firstValue + secondValue;
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//alert(sum);
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//if(10 === 10) {
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// console.log('10');
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//} else if (null != undefined) {
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// console.log('null != undefined');
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//} else {
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// console.log(`nothing`);
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//}
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// TASK 2
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//let query = Number(prompt(`Enter a number: `));
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//if (query > 150) {
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// console.log(`Тайланд`);
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//} else if (query <= 100) {
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// if(query < 0) {
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// console.log(`Enter positive number`);
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// }
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// else {
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// console.log(`Бали`);
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// }
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//} else {
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// console.log(`Италия`);
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//}
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// TASK 3
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//if (1 > 3) {
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// if (1 > 3) {
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// console.log(`1`);
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// } else if (1 > 3) {
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// console.log(`2`);
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// } else {
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// console.log(`3`);
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// }
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//} else if (1 > 3) {
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// if (1 > 3) {
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// console.log(`4`);
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// } else if (1 > 3) {
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// console.log(`5`);
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// } else {
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// console.log(`6`);
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// }
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//} else {
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// if (1 === 2) {
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// console.log(`7`);
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// } else if (1 === 2) {
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// console.log(`8`);
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// } else {
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// console.log(`The end`);
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// }
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//}
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// TASK 4
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function task4 () {
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let checkNumber = 1;
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let firstValue = Number(prompt('Enter first number'));
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if (isNaN(firstValue)) {
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return alert(`First prompt is NaN`), task4();
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}
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let secondValue = Number(prompt('Enter second number'));
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if (isNaN(secondValue)) {
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return alert(`Second prompt is NaN`), task4();
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}
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let sum = firstValue + secondValue;
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alert(sum);
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}
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task4();
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