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Hw 15 #16

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e6f938d
classwork 15
viskosa Jul 17, 2018
7384cb5
hw_15 was partially done
viskosa Jul 20, 2018
ab4b3a7
Merge branch 'master' into hw_15
viskosa Jul 23, 2018
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51 changes: 46 additions & 5 deletions js-core/classworks/classwork-15/index.html
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Original file line number Diff line number Diff line change
@@ -1,12 +1,53 @@
<!DOCTYPE html>
<html>
<html lang="en">

<head>
<meta charset="utf-8">
<title>Lesson_15</title>
<meta charset="UTF-8">
<title>Document</title>
<style>
ul {
list-style: none;
}
main {
width: 600px;
margin: 0 auto;
}
</style>

</head>

<body>
<h1>Classwork 15</h1>
<main>
<h1 class="header">Тест по программированию</h1>
<ol>
<li>
<h3>Вопрос 1</h3>
<ul>
<li><input type="checkbox" id="check_1"><label for="check_1">Ответ номер 1</label></li>
<li><input type="checkbox" id="check_2"><label for="check_2">Ответ номер 2</label></li>
<li><input type="checkbox" id="check_3"><label for="check_3">Ответ номер 3</label></li>
</ul>
</li>
<li>
<h3>Вопрос 2</h3>
<ul>
<li><input type="checkbox" id="check_1"><label for="check_1">Ответ номер 1</label></li>
<li><input type="checkbox" id="check_2"><label for="check_2">Ответ номер 2</label></li>
<li><input type="checkbox" id="check_3"><label for="check_3">Ответ номер 3</label></li>
</ul>
</li>
<li>
<h3>Вопрос 3</h3>
<ul>
<li><input type="checkbox" id="check_1"><label for="check_1">Ответ номер 1</label></li>
<li><input type="checkbox" id="check_2"><label for="check_2">Ответ номер 2</label></li>
<li><input type="checkbox" id="check_3"><label for="check_3">Ответ номер 3</label></li>
</ul>
</li>
</ol><button>Проверить</button>
</main>

<script src="main.js"></script>

<script type="text/javascript" src="main.js"></script>
</body>
</html>
122 changes: 122 additions & 0 deletions js-core/classworks/classwork-15/main.js
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const questions = [
{
questionName: 'question 1',
answers: ['answer 1', 'answer 2', 'answer 3'],
correctAnswers: [1]
},
{
questionName: 'question 2',
answers: ['answer 1', 'answer 2', 'answer 3'],
correctAnswers: [2]
},
{
questionName: 'question 3',
answers: ['answer 1', 'answer 2', 'answer 3'],
correctAnswers: [1, 2]
}
];

const app = {
questions,
testName: 'Тест по программированию',
render() {
const main = this.newEl('main');
const testName = this.newEl('h1');
testName.textContent = this.testName;
const questionsList = this.newEl('ol');

const button = this.newEl('button');
button.setAttribute('type', 'submit');
button.textContent= 'Проверить результаты';

button.onclick = function(){//изменяем заголовок у второго вопроса
//console.log('clicked');
//questionsList.children[1].children[0].textContent = 'Вопрос 9999';

if (questionsList.children[1].children[0].textContent == 'Вопрос 9999') {
questionsList.children[1].children[0].textContent = 'Вопрос 2';
} else {
questionsList.children[1].children[0].textContent = 'Вопрос 9999';
};
console.log(questionsList.children[1].children[1].children[0].lastChild.checked);
let input = questionsList.children[1].children[1];

// по клику то чекед, то не чекед
input.children[0].firstElementChild.checked = !input.children[0].firstElementChild.checked;//toggle
input.children[2].firstElementChild.checked = !input.children[2].firstElementChild.checked;


for (let i = 0; i < questionsList.children.length; i++){
console.log(questionsList.children[i].children[1].children[1].firstElementChild);
questionsList.children[i].children[1].children[1].firstElementChild.checked;
}

console.dir(questionsList);
for (let i = 0; i < questionsList.children.length; i++){
let title = questionsList.children[i].firstElementChild;
console.log(title);
title.setAttribute('style', 'background: red')
}

let titles = document.querySelectorAll('h3');//это не массив, а коллекция элементов, у нее нет методов массивов
//только for-ом можно пройти
[...titles].forEach((item) => { //но вот так можно превратить ее в массив
item.setAttribute('style', 'background: green'); // и жизнь налаживается
})
/* for (let i = 0; i < titles.length; i++){ //ну или фором
let title = titles[i];
//console.log(title);
title.setAttribute('style', 'background: green')
}*/


}
/*s
*
* this.renderQuestions()
*
* */
this.questions.forEach(question => {
const li = this.newEl('li');
const questionHeader = this.newEl('h3');
questionHeader.textContent = question.questionName;

const answers = this.newEl('ul');

question.answers.forEach((answer, answerIndex) => {
answers.appendChild(this.renderAnswer(answer, answerIndex));
});

li.appendChild(questionHeader);
li.appendChild(answers);
questionsList.appendChild(li);
});

main.appendChild(testName);
main.appendChild(questionsList);

main.appendChild(button);

document.body.appendChild(main);
},
renderAnswer(answer, answerIndex) {
const li = this.newEl('li');
const label = this.newEl('label');
const uniqId = `uniq_${Math.random()}_${answerIndex}`;
label.setAttribute('for', uniqId);
label.textContent = answer;

const input = this.newEl('input');
input.setAttribute('type', 'checkbox');
input.setAttribute('id', uniqId);

li.appendChild(input);
li.appendChild(label);
return li;
},
newEl(elName) {
return document.createElement(elName);
}
};

app.render();
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