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homework_9
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‎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 arrRequirements = this.requirements;
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if(this.skills) {
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let arrSkills = this.skills;
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arrRequirements.forEach(function(elem) {
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let initialElem = elem;
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let comparison = arrSkills.some(function(elem) {
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if(typeof elem == 'object') {
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for(let key in elem) {
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return elem[key] == initialElem
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};
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};
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return initialElem == elem;
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});
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if (comparison) {
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console.log( `required: ${elem} ...success`);
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} else {
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console.log( `required: ${elem} ...fail`);
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};
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});
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} else if(this.experience) {
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let arrExperience = this.experience;
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arrRequirements.forEach(function(elem) {
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let initialElem = elem;
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let comparison = arrExperience.some(function(elem) {
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if(typeof elem == 'object') {
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for(let key in elem) {
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return elem[key] == initialElem
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};
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};
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return initialElem == elem;
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});
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if (comparison) {
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console.log( `Task1---> required: ${elem} ...success`);
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} else {
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console.log( `Task1---> required: ${elem} ...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.slice();
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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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let arrZero = arr.filter((elem) => elem === 0);
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let arrayWithoutZeros = arr.filter((elem) => elem != 0);
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return arrayWithoutZeros.concat(arrZero);
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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 = [];
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arr.forEach((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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resArrCapMe.push(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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