// Require Node.js core dependencies
const { strictEqual, deepStrictEqual } = require("assert").strict;
// un générateur
function* foo() {
    yield 1;
    yield "hello";
    yield 2;
}

// Compléter les assertions suivantes en remplaçant "null" par la bonne valeur:
const iterator = foo();

strictEqual(iterator.next().value, 1);
strictEqual(iterator.next().value, "hello");
strictEqual(iterator.next().value, 2);
strictEqual(iterator.next().value, undefined); // ou (iterator.next().done == true

function* bar() {
    yield* foo(); // passe la main au générateur foo
    yield* [3, 4];
}
deepStrictEqual([...bar()], [1,"hello",2,3,4]); // on spreade la fonction bar

console.log("BRAVO! Toutes les assertions sont valides.")
Run

const workshopInput = `Contrary to popular belief, Lorem Ipsum is not simply random text.
It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old.
Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words,
consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source.
Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC.
This book is a treatise on the theory of ethics, very popular during the Renaissance.
The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.`;

const EOS = Symbol(); // end of sequence

// ici il s'agissait d'écrire cette fonction
function *solution(input) {
    const iterator = input[Symbol.iterator]();// itère symbole par symbole sur la chaîne
    let ch;

    do {
        ch = getNextItem(iterator);
        if (!isNumber(ch)) continue;
		// on a le premier chiffre
        let number = '';
        do {
            number += ch;
            ch = getNextItem(iterator);
        } while (isNumber(ch));

        yield Number(number);
    } while (ch !== EOS);
}

function getNextItem(iterator) {
    const item = iterator.next();

    return item.done ? EOS : item.value;
}

// cool !
function isNumber(char) {
    return /[0-9]/.test(char);
}

const iterator = solution(workshopInput);
console.log(iterator.next()); // 45
console.log(iterator.next()); // 2000
console.log(iterator.next()); // 1
console.log(iterator.next()); // 10 
console.log(iterator.next()); // 32
Run

const workshopInput = {
    name: "banana",
    items: [
        {
            name: "hibou",
            items: [
                {
                    name: "apple",
                    items: []
                },
                {
                    name: "kangourou",
                    items: []
                }
            ]
        },
        {
            name: "foobar",
            items: []
        }
    ]
}

function *solution(item) {
    yield item.name;

    for (const childrenItem of item.items) {
        yield* solution(childrenItem); // appel récursif pour trouver tous les sous items
    }
}

const iterator = solution(workshopInput);
console.log([...iterator]); // [ 'banana', 'hibou', 'apple', 'kangourou', 'foobar' ]
Run