Array.from(arrayLike, mapFn, thisArg)

Creates a new Array instance from an array-like or iterable object, optionally mapping each item using a map function.

Examples:

let string = 'hello';
let letters = Array.from(string);
console.log(letters); // ['h', 'e', 'l', 'l', 'o']

let set = new Set([1, 2, 3]);
let numbers = Array.from(set);
console.log(numbers); // [1, 2, 3]

const numbers = [1, 2, 3];
const doubled = Array.from(numbers, x => x * 2);

console.log(doubled); // [2, 4, 6]

// Array-like object
const arrayLike = {
  0: '10',
  1: '20',
  2: '30',
  length: 3
};

// Mapping function
function mapFn(element) {
  return parseInt(element) * this.multiplier;
}

// Context object
const context = {
  multiplier: 2
};

// Using Array.from directly
const result = Array.from(arrayLike, mapFn, context);

console.log(result); // [20, 40, 60]