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Homework 13 #10

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b49a8e6
index homework13
BukinaNastya Jul 12, 2018
f26db4a
main js homework 13
BukinaNastya Jul 12, 2018
a3416f7
task 2 доделала
BukinaNastya Jul 13, 2018
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12 changes: 12 additions & 0 deletions js-core/homeworks/homework-13/index.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Homework-13</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<script src="src/main.js"></script>
</body>
</html>
123 changes: 123 additions & 0 deletions js-core/homeworks/homework-13/src/main.js
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/*
* TASK - 2
*
* Перепишите Homework 12 - TASK 1 используя class
*
* */

class Human {
constructor(options) {
this.name = options.name;
this.age = options.age;
this.sex = options.sex;
this.heigth = options.heigth;
this.weigth = options.weigth;
}
}

class Worker extends Human {
constructor(options){
super(options);
this.company = options.company;
this.salary = options.salary;
this.works = () => console.log("good work!");
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@OlegLustenko OlegLustenko Jul 13, 2018

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that method should be in prototype but not in constructor

}
}

class Student extends Human {
constructor(options){
super(options);
this.university = options.university;
this.grants = options.grants;
this.watchSerials = () => console.log("Greate serials!");
}
}
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@OlegLustenko OlegLustenko Jul 13, 2018

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same as above


let worker = new Worker({
name: "nastya",
age: 24,
sex: "female",
heigth: 175,
weigth: 65,
salary: 5000,
company: "company name"
});

worker.works();

let student = new Student({
name: "masha",
age: 20,
sex: "female",
heigth: 170,
weigth: 55,
university: "DonNTU",
grants: 500
});

student.watchSerials();

console.log(worker);
console.log(student);

/*
* Вы должны создать имитацию медленной базы данных.
* TASK - 1 Сделайте Класс Database с методами
*
* query
*
* При запуске метода query запустите внутренний таймаут, который будет длиться 5 секунд.
* При поступлении еще 1 запроса(если вызвать метод еще раз),
* таймаут должен стартануть сначала
* и ответ должен прийти снова через 5 секунд
*
* */

class DataBase {
constructor(){
this.interval = 0;
this.query = function(){
var counter = 5;
if (this.interval > 0) {
clearInterval(this.interval);
}
var interval = setInterval(() => {
this.interval = interval;
console.log(counter);
counter--;
if (counter == 0){
clearInterval(interval);
console.log('The web server is down');
}
},1000)
};
}
}


const dataBase = new DataBase();
dataBase.query();


// // 5
// // 4
// // 3
// // 2
// // 1
// // console.log('The web server is down') https://www.youtube.com/watch?v=W8_Kfjo3VjU

// dataBase.query();
// // 5
// // 4
// dataBase.query();
// // 5
// // 4
// // 3
// // 2
// dataBase.query();
// 5
// 4
// 3
// 2
// 1
// console.log('The web server is down')