main.js

//------------------- Assignment 1 -------------------

let setOfNumbers = new Set([10]);
setOfNumbers.add(20).add(setOfNumbers.size);
console.log(setOfNumbers); // Set(3) {10, 20, 2}
console.log([...setOfNumbers][setOfNumbers.size - 1]); // 2

console.log("");

//------------------- Assignment 2 -------------------

let myFriends = ["Osama", "Ahmed", "Sayed", "Sayed", "Mahmoud", "Osama"];
console.log([...new Set(myFriends)].sort()); // (4) ['Ahmed', 'Mahmoud', 'Osama', 'Sayed']

console.log("");

//------------------- Assignment 3 -------------------

let myInfo = {
  username: "Osama",
  role: "Admin",
  country: "Egypt",
};

let myMap = new Map(Object.entries(myInfo));

console.log(myMap); // Map(3) {'username' => 'Osama', 'role' => 'Admin', 'country' => 'Egypt'}
console.log(myMap.size); // 3
console.log(myMap.has("role")); // true

console.log("");

//------------------- Assignment 4 -------------------

let theNumber = 100020003000;

console.log(+[...new Set(theNumber.toString())].sort().join("")); // 123

console.log("");

//------------------- Assignment 5 -------------------

let theName = "Elzero";

console.log(Array.from(theName)); // (6) ['E', 'l', 'z', 'e', 'r', 'o']

console.log([...theName]); // (6) ['E', 'l', 'z', 'e', 'r', 'o']

console.log(theName.split("")); // (6) ['E', 'l', 'z', 'e', 'r', 'o']

console.log([...new Set(theName)]); // (6) ['E', 'l', 'z', 'e', 'r', 'o']

let arr = [];
for (let i = 0; i < theName.length; i++) arr.push(theName[i]);
console.log(arr); // (6) ['E', 'l', 'z', 'e', 'r', 'o']

// Additional Method
console.log(Object.assign([], theName)); // (6) ['E', 'l', 'z', 'e', 'r', 'o']

console.log("");

//------------------- Assignment 6 -------------------

let chars = ["A", "B", "C", "D", "E", 10, 15, 6];
// let chars = ["A", "B", "C", 20, "D", "E", 10, 15, 6];
// let chars = ["Z", "Y", "A", "D", "E", 10, 1];

let charsArray = chars.filter((e) => isNaN(e));
let numsArray = chars.filter((e) => !isNaN(e));

let newArray = [...numsArray, ...charsArray];

newArray.copyWithin(0, numsArray.length, numsArray.length * 2);

console.log(newArray);

// // Needed Output
// ['A', 'B', 'C', 'A', 'B', 'C', 'D', 'E']
// ['A', 'B', 'C', 'D', 'A', 'B', 'C', 'D', 'E']
// ["Z", "Y", "Z", "Y", "A", "D", "E"]

console.log("");

//------------------- Assignment 7 -------------------

let numsOne = [1, 2, 3];
let numsTwo = [4, 5, 6];

console.log([...numsOne, ...numsTwo]); // [1, 2, 3, 4, 5, 6]

console.log(numsOne.concat(numsTwo)); // [1, 2, 3, 4, 5, 6]

numsOne.push(...numsTwo);
console.log(numsOne); // [1, 2, 3, 4, 5, 6]

console.log("");

//------------------- Assignment 8 -------------------

let n1 = [10, 30, 10, 20];
let n2 = [30, 20, 10];

// Solution
console.log([...n1, ...n2].length * new Set(n2).size * Math.min(...n2)); // 210

// Another Simple Solution Without using Set
console.log([...n1, ...n2].length * Math.max(...n2)); // 210

// Another Solution Without using Math Object
console.log([...n1, ...n2].length * new Set(n2).values().next().value); // 210