Different ways. of creating array

// 1. Array Literal Syntax
const fruits = ['apple', 'banana', 'cherry'];

// 2. Using the new Array() constructor
const numbers = new Array(1, 2, 3, 4, 5);

// 3. Using the Array.from() method
const squares = Array.from({ length: 5 }, (_, index) => index * index);

// 4. Using Array.of()
const elements = Array.of(1, 'hello', true, { key: 'value' });

// 5. Using Array.prototype.push()
const colors = [];
colors.push('red', 'green', 'blue');

// 6. Using Array.prototype.concat()
const veggies = ['carrot', 'broccoli'];
const fruits = ['apple', 'banana'];
const food = veggies.concat(fruits);

// 7. Using Array.prototype.slice()
const animals = ['lion', 'tiger', 'bear'];
const animalsSubset = animals.slice(1, 3); // ['tiger', 'bear']

// 8. Using the fill() method
const emptyArray = new Array(5).fill(0);

// 9. Using Array Destructuring
const [first, second, third] = ['one', 'two', 'three'];

// 10. Using Array.prototype.map()
const numbers = [1, 2, 3];
const squaredNumbers = numbers.map(num => num * num);

// 11. Using Array.prototype.filter()
const numbers = [1, 2, 3, 4, 5];
const evenNumbers = numbers.filter(num => num % 2 === 0);

// 12. Using Array.prototype.reduce()
const numbers = [1, 2, 3, 4, 5];
const sum = numbers.reduce((accumulator, currentValue) => accumulator + currentValue, 0);

// 13. Using Array Comprehensions (ECMAScript 7 feature)
const numbers = [for (i of [1, 2, 3]) i * i];

// 14. Using the Array() constructor with a single numeric argument
const emptyArray = new Array(10); // creates an array with 10 empty slots

// 15. Using Array.prototype.splice()
const fruits = ['apple', 'banana', 'cherry'];
fruits.splice(1, 0, 'orange'); // adds 'orange' at index 1

// 16. Using Array Spread Syntax
const firstArray = [1, 2, 3];
const secondArray = [...firstArray, 4, 5, 6];

// 17. Using Array.prototype.unshift()
const numbers = [3, 4, 5];
numbers.unshift(1, 2); // adds 1 and 2 to the beginning

// 18. Using Array.prototype.fill() with a value
const newArray = new Array(5).fill('hello');

// 19. Using Array.prototype.keys() to get an iterator for array keys
const fruits = ['apple', 'banana', 'cherry'];
const keysIterator = fruits.keys();

// 20. Using Array.prototype.values() to get an iterator for array values
const fruits = ['apple', 'banana', 'cherry'];
const valuesIterator = fruits.values();