js yield map

function* generatorFunction() {
    yield 1;
    yield 2;
    yield 3;
}

const generator = generatorFunction();

console.log(generator.next()); // { value: 1, done: false }
console.log(generator.next()); // { value: 2, done: false }
console.log(generator.next()); // { value: 3, done: false }
console.log(generator.next()); // { value: undefined, done: true }

const numbers = [1, 2, 3];
const doubled = numbers.map(num => num * 2);

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

function* mapGenerator(array, callback) {
    for (const item of array) {
        yield callback(item);
    }
}

const numbers = [1, 2, 3];
const generator = mapGenerator(numbers, num => num * 2);

console.log(generator.next()); // { value: 2, done: false }
console.log(generator.next()); // { value: 4, done: false }
console.log(generator.next()); // { value: 6, done: false }
console.log(generator.next()); // { value: undefined, done: true }

function* generatorFunction() {
    try {
        yield 1;
        yield 2;
        throw new Error('An error occurred');
    } catch (error) {
        console.error(error.message);
    }
    yield 3;
}