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Merge pull request #13 from EasyCode-JavaScriptReact-v1/homework_11
Homework 11
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‎js-core/homeworks/homework-10/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>Home work 10</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/homeworks/homework-10/src/main.js‎

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//Task0
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let y = 5; //объявлена глобальная переменная 'y' со значением 5
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let x = () => y; //объявлена стрелочная функция 'x' без аргументов которая возвращает 'y', тоесть 5
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let z = t => { //объявлена стрелочная функция 'z' с аргументом 't'
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let y = 5; //oбъявлена локальная переменная 'y' со значением 5
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t(); // 't' это колбек функция которую вызвали
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};
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console.log(y); //выводит в консоль глобальную переменную 'y' объявленую в 2 строке, соответственно выведет 5
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z(x); // что вернет //вызываем функцию 'z' с параметром 'x' который является функцией и возвращает глобальную переменную 'y'. Сама функция ничего не возвращает. Результатом будет undefined
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//Task1
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let $ = function(str) {
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return `<${str}></${str}>`;
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};
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let createBODY = $('body');
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let createDIV = $('div');
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console.log('Task1 --->', createBODY); // <body></body>
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console.log('Task1 --->', createDIV); // <div></div>
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// //Task2
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// let ezjQuery = {
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// strTag: '',
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// add(str) {
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// return this.strTag = this.strTag + `<${str}></${str}>`;
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// }
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// };
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// console.log('Task2 --->', ezjQuery.add('body')); // <body></body>
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// console.log('Task2 --->', ezjQuery.add('div')); // <body></body><div></div>
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// console.log('Task2 --->', ezjQuery.add('h1')); // <body></body><div></div><h1></h1>
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//Task3
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let ezjQuery = {
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//strTag: '',
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tags: [],
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add(str, text) {
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this.tags.push({tagName: str, text: text || ''});
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return this;
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//return this.strTag = this.strTag + `<${str}></${str}>`;
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},
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render() {
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let strTag = '';
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for(let i = 0; i < this.tags.length; i++) {
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if(this.tags[i].text == '') {
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strTag += `<${this.tags[i].tagName}>`;
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} else {
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strTag += `<${this.tags[i].tagName}>${this.tags[i].text}`;
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};
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};
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for(let i = this.tags.length - 1; i >= 0; i--) {
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strTag += `</${this.tags[i].tagName}>`;
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};
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this.tags = [];
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return strTag;
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}
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};
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let helloList = ezjQuery
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.add('body') // <body></body>
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.add('div') // <body><div></div></body>
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.add('ul') // <body><div><ul></ul></div></body>
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.add('li', 'Hello') //<body><div><ul><li>Hello</li></ul></div></body>
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.render();
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console.log('Task3 --->', helloList); // <body><div><ul><li>Hello</li></ul></div></body>
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document.write(helloList)
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// Обратите внимание, что после вызова render создание строки началось сначала
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let bodyDiv = ezjQuery
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.add('body') //<body></body>
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.add('div') //<body><div></div></body>
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.render();
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console.log('Task3 --->', bodyDiv); //<body><div></div></body>

‎js-core/homeworks/homework-11/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>Home work 11</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/homeworks/homework-11/src/main.js‎

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let user = {
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userName: 'userName'
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};
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let admin = {
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emailAdmin: '[email protected]'
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};
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let guest = {
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guestName: 'guestName'
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};
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let database = {
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passwordDatabase: 'password-database',
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informationAboutUsers: [],
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registerGuest(obj) {
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this.informationAboutUsers.push(obj);
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}
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};
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user.__proto__ = admin;
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console.log(user.emailAdmin);
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admin.__proto__ = database;
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console.log(admin.passwordDatabase);
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guest.__proto__ = user;
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database.registerGuest(guest);
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database.registerGuest(guest);
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console.log(guest.informationAboutUsers);

‎js-core/homeworks/homework-9/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>Home work 9</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/homeworks/homework-9/src/main.js‎

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//Task1
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let developer1 = {
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skills: ['JavaScript', 'linux', 'html', 'OOP', 'Node.js'],
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requirements: ['Node.js', 'JavaScript', 'OOP'],
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goodDev: goodDev
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};
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let developer2 = {
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experience: [
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{ technology: 'java' },
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{ technology: 'c++' },
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{ technology: 'aws' },
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{ technology: 'docker' }
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],
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requirements: ['java', 'json', 'c++', 'JavaScript'],
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goodDev: goodDev
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};
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function goodDev (dev) {
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let developerRequirements = this.requirements;
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if(this.skills) {
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let developerSkills = this.skills;
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developerRequirements.forEach((initialElem) => {
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let comparison = developerSkills.some((developerSkills) => {
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for(let key in developerSkills) {
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return developerSkills == initialElem
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};
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return initialElem == developerSkills;
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});
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if (comparison) {
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console.log( `required: ${initialElem} ...success`);
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} else {
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console.log( `required: ${initialElem} ...fail`);
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};
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});
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} else if(this.experience) {
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let developerExperience = this.experience;
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developerRequirements.forEach((initialElem) => {
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let comparison = developerExperience.some((developerExperience) => {
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for(let key in developerExperience) {
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return developerExperience[key] == initialElem;
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};
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return initialElem == developerExperience;
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});
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if (comparison) {
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console.log( `Task1---> required: ${initialElem} ...success`);
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} else {
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console.log( `Task1---> required: ${initialElem} ...fail`);
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};
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});
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};
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};
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developer1.goodDev();
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developer2.goodDev();
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//Task2
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let myObject = {
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database: [
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{ age: 100, name: 'b' },
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{ age: 15, name: 'c' },
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{ age: 25, name: 'a' }
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]
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};
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myObject.myFilter = function(param) {
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let tmp = [...this.database];
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let fnSort = function (arg1, arg2) {
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return arg1[param] > arg2[param];
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};
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return tmp.sort(fnSort);
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};
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console.log('Task2--->', myObject.myFilter('age'));
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console.log('Task2--->', myObject.myFilter('name'));
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myObject.myFilter2 = function(param) {
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let fnSort = function (arg1, arg2) {
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return arg1[param] > arg2[param];
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};
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return this.database.sort(fnSort);
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};
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// {age:15, name:'c'}, {age:25, name:'a'} {age:100, name:'b'}
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console.log('Task2--->', myObject.myFilter2('age'));
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// {age:25, name:a}, {age:100, name: b} ...
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//console.log('Task2--->', myObject.myFilter2('name'));
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//Task3
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//1
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let arr1 = [1, false, 2, 0, 3, null, 0, 4, 0, 25];
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let arr2 = ['a', 0, 0, 'b', null, 'c', 'd', 0, 1,
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false, 0, 1, 0, 3, [], 0, 1, 9, 0, 0, {}, 0, 0, 9];
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let moveZeroToEnd = (arr) => {
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let arrayWithoutZeros = [];
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let arrZero = [];
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arr.forEach((elem) => {
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if(elem != 0) {
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arrayWithoutZeros.push(elem);
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};
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if (elem === 0) {
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arrZero.push(elem);
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};
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});
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let newArr = arrayWithoutZeros.concat(arrZero);
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return newArr;
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};
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console.log('Task3---> Задание 1 --> нули в конце массива ', moveZeroToEnd(arr1));
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console.log('Task3---> Задание 1 --> нули в конце массива ', moveZeroToEnd(arr2));
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let moveZeroToEnd2 = (arr) => {
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return arr.filter((elem) => elem != 0).concat(arr.filter((elem) => elem === 0));
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};
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console.log('Task3---> Задание 1 --> нули в конце массива ', moveZeroToEnd2(arr1));
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console.log('Task3---> Задание 1 --> нули в конце массива ', moveZeroToEnd2(arr2));
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//2
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let arrayOfNumbers = [1,200,10,1,1,25,15];
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//let arrayOfNumbers = [10,20,30,1,31,11,10];
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//let arrayOfNumbers = [-1,0,25];
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//let arrayOfNumbers = [-4,-10,25,10];
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let minNamber = (arr) => {
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let min = arr[0];
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arr.forEach((elem) => {
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if(elem < min) {
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min = elem;
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};
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});
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return min;
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};
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let addTwoMin = (arr) => {
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let newArr2 = [];
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let firstNumber = minNamber(arr);
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let firstNumberIndex;
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for (let i = 0; i < arr.length; i++) {
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if (arr[i] === firstNumber) {
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firstNumberIndex = i;
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break;
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};
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};
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for (let i = 0; i < arr.length; i++) {
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if (i === firstNumberIndex) {
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continue;
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};
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newArr2.push(arr[i]);
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};
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let secondNumber = minNamber(newArr2);
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return firstNumber + secondNumber;
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};
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console.log('Task3---> Задание 2 --> Сумма двух минимальных в массиве ',addTwoMin(arrayOfNumbers));
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//3
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let strNameShuffler ='Arnold Schwarzenegger';
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let nameShuffler = (str) => {
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let arrStr = str.split(' ');
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let arrStrReverse = arrStr.reverse();
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return arrStrReverse.join(' ');
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};
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console.log('Task3---> Задание 3', nameShuffler(strNameShuffler));
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//4
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//let arrCapMe = ['jo', 'nelson', 'jurie'];
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let arrCapMe = ['KARLY', 'DANIEL', 'KELSEY'];
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let capMe = (arr) => {
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let resArrCapMe = arr.map((elem) =>{
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let elemArr = elem;
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let firstCapitalLetter = elemArr.charAt(0).toUpperCase();
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let theRestSmall = elemArr.slice(1, elemArr.length).toLowerCase();
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let concatVersion = firstCapitalLetter.concat(theRestSmall);
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return concatVersion;
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});
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return resArrCapMe;
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};
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console.log('Task3---> Задание 4', capMe(arrCapMe));
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//@SUPER 2
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let firstArray1 = [25,10,[10,[15]]];
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let changeArr = (arr) => {
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if (Array.isArray(arr)) {
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return arr.reduce((done,curr) => {
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return done.concat(changeArr(curr));
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}, []);
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} else {
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return arr;
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};
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};
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console.log('Task3--->', changeArr(firstArray1));

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