解析在alexa中使用的promise后返回一个值

function fetchData() {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            resolve('Data fetched successfully');
        }, 2000);
    });
}

fetchData()
    .then(data => {
        console.log(data); // 输出: Data fetched successfully
    })
    .catch(error => {
        console.error('Error:', error);
    })
    .finally(() => {
        console.log('Fetch operation completed');
    });

function fetchData() {
    return new Promise((resolve, reject) => {
        try {
            // 模拟异步操作
            setTimeout(() => {
                const success = true; // 假设这里有一些逻辑来决定成功或失败
                if (success) {
                    resolve('Data fetched successfully');
                } else {
                    reject(new Error('Failed to fetch data'));
                }
            }, 2000);
        } catch (error) {
            reject(error);
        }
    });
}

fetchData()
    .then(data => {
        console.log(data);
    })
    .catch(error => {
        console.error('Error:', error);
    });