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lesson6.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>JS</title>
</head>
<body>
<script>
let data = [
{
id: 1,
title: "news 1"
},
{
id: 2,
title: "news 2"
},
{
id: 3,
title: "news 3"
},
{
id: 4,
title: "news 4"
},
];
function NewsFunc(newsData, color = '#000') {
let list = document.createElement('ul');
list.insertAdjacentHTML('beforeEnd', newsData.map(({id, title}) => `<li data-id="${id}" style="color: ${color}">${title}</li>`) );
return list;
};
// let newsFuncComponent = NewsFunc(data);
document.body.append(newsFuncComponent)
document.body.append(NewsFunc(data, 'red'))
</script>
<!--
<script>
let data = [
{
id: 1,
title: 'Новость 1',
},
{
id: 2,
title: 'Новость 2',
},
{
id: 3,
title: 'Новость 3',
},
]; -->
<!--
function NewsFunc(newsData, color = '#000') {
let list = document.createElement('UL');
list.insertAdjacentHTML('beforeEnd', newsData.map(({ id, title }) => `<li data-id="${id}" style="color: ${color}">${title}</li>`));
return list;
} -->
<!--
// let newsFunComponent = NewsFunc(data);
// document.body.append( newsFunComponent );
// document.body.append( NewsFunc(data, 'red') );
</script> -->
<script>
class News {
constructor (newsData) {
this.newsData = newsData
// this.a = num;
// this.b = 2;
}
render () {
this.elem = document.createElement('ul');
this.elem.insertAdjacentHTML(
'beforeEnd',
this.newsData.map(({id, title}) => `<li data-id="${id}">${title}</li>`) );
};
return this.elem;
}
// test() {
// console.log('this.a', this.a);
// }
let newsComponent = new News(data);
// let newsComponent2 = new News(7);
console.log('newsComponent: ', newsComponent)
// console.log('newsComponent2: ', newsComponent2)
// newsComponent.test();
// newsComponent2.test();
</script>
<!--
<script>
class News {
constructor(newsData) {
this.newsData = newsData;
this.render();
} -->
<!--
render() {
this.elem = document.createElement('UL');
this.elem.insertAdjacentHTML(
'beforeEnd',
this.newsData.map(({ id, title }) => `<li data-id="${id}">${title}</li>`)
);
this.elem.addEventListener('click', this.onClick);
return this.elem;
}
onClick(ev) {
let li = ev.target.closest('li');
if (li) {
li.style.textDecoration = 'line-through';
}
}
}
let newsComponent = new News(data);
document.body.append( newsComponent.elem ); -->
<!-- </script> -->
<!--
<script>
class User {
constructor(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
read() {
console.log(this.firstName, this.lastName, 'может читать новости');
}
}
let user = new User('Филипп', 'Киркоров');
user.read();
class Moderator extends User {
edit() {
console.log(this.firstName, this.lastName, 'может редактировать новости');
}
}
let moderator = new Moderator('Максим', 'Галкин');
moderator.read();
moderator.edit();
class Admin extends Moderator {
all() {
console.log(this.firstName, this.lastName, 'может всё');
}
}
let admin = new Admin('Алла', 'Пугачёва');
admin.read();
admin.edit();
admin.all();
</script> -->
<!--
<script>
class CoffeeMachine {
#power;
constructor(power, waterAmount) {
this.power = power;
this.waterAmount = waterAmount;
this.render();
}
set power(value) {
if (value > 3000) {
value = 3000;
} else if (value < 500) {
value = 500;
}
this.#power = value;
}
get power() {
return `Мощность кофемашины: ${this.#power}Вт`;
}
#start = () => {
console.log('Кофе будет готов через', this.waterAmount / this.#power * 1000, 'мин');
setTimeout(() => {
let ce = new CustomEvent('coffee', { bubbles: true });
this.elem.dispatchEvent(ce);
}, this.waterAmount / this.#power * 1000 * 1000);
}
render() {
this.elem = document.createElement('BUTTON');
this.elem.textContent = 'СВАРИТЬ КОФЕ';
this.elem.onclick = this.#start;
}
}
let coffeeMachine = new CoffeeMachine(3000, 3);
console.log( coffeeMachine.power );
coffeeMachine.power = 1000;
console.log( coffeeMachine.power );
document.body.append( coffeeMachine.elem );
coffeeMachine.elem.addEventListener('coffee', () => {
alert('КОФЕ ГОТОВ!');
});
</script> -->
<!--
<button class="btn1" data-product="Бананы">Добавить в корзину: Бананы</button>
<script>
let btn1 = document.querySelector('.btn1');
btn1.addEventListener('click', ev => {
let ce = new CustomEvent('product-add', {
bubbles: true,
detail: btn1.dataset.product,
});
btn1.dispatchEvent(ce);
});
btn1.addEventListener('product-add', (ev) => {
console.log('Товар добавлен в корзину:', ev.detail);
});
</script> -->
</body>
</html>