LiveSessionSanbercodeReactJs

//Dony Salman Adi Pradana

//No 1
const myCountPromise = (value) => {
    return new Promise((resolve, reject) => {
        if (value != undefined) {
            setTimeout(() => {
                resolve(value*2);
            },2000);
        } else {
            reject("Maaf tidak ada nilai dalam parameter");
        }
    });
};

myCountPromise(2)
    .then((result) => {
        console.log(result);
    })
    .catch((error) => {
        console.log(error);
    });


//No 2
function filterBooksPromise(colorful, amountOfPage){
    return new Promise(function(resolve, reject){
    var books=[
    {name: "shinchan", totalPage: 50, isColorful: true},
    {name: "Kalkulus", totalPage: 250, isColorful: false},
    {name: "doraemon", totalPage: 40, isColorful: true},
    {name: "algoritma", totalPage: 250, isColorful: false},
    ]
    if (amountOfPage >= 40) {
    resolve(books.filter(x=> x.totalPage >= amountOfPage && x.isColorful == colorful));
    } else {
    var reason= "Maaf buku di bawah 40 halaman tidak tersedia"
    reject(reason);
    }
    });
    }


    // jalankan function promisenya disini ( wajib menggunakan async/await )

    const execute = async (colorful, amountOfPage) => {
        try {
            const result = await filterBooksPromise(colorful, amountOfPage);
            console.log(result);
        } catch (error) {
            console.log(error);
        }
    }

    execute(true, 40);
    execute(false, 250);
    execute(true, 30);