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Modern way to work with arrays

// Copy an array
let original = [1, 2, 3];
let copy = [...original];
console.log(copy); // [1, 2, 3]

// Merge arrays
let first = [1, 2];
let second = [3, 4];
let combined = [...first, ...second];
console.log(combined); // [1, 2, 3, 4]

// Add elements
let numbers = [2, 3];
let expanded = [1, ...numbers, 4];
console.log(expanded); // [1, 2, 3, 4]

Sort, without affecting the original array

let fruits = ["orange", "apple", "banana"];
let sortedFruits = [...fruits].sort();
console.log(sortedFruits);