async_await_test.js

function wait(t, callback) {
    return new Promise(
        (resolve, reject) => setTimeout(() => callback(resolve, reject), t));
}

async function main() {
    await wait(1000, (resolve, reject) => {
        console.log('resolve');
        resolve();
    });
    console.log(1);
    
    try {
        await wait(1000, (resolve, reject) => {
            console.log('reject');
            reject('reason');
        });
        console.log(2);
    } catch (e) {
        console.log(e);
    }
    
    console.log(3);
    
    try {
        await wait(1000, (resolve, reject) => {
            console.log('exception');
            throw 'error';
        });
        console.log(4);
    } catch (e) {
        console.log(e);
    }
    console.log(5);
}

try {
    main();
} catch (e) {
    console.log(e);
}