从监听器异步获取结果

// 示例代码：使用Promise解决回调地狱
function asyncOperation1() {
    return new Promise((resolve, reject) => {
        // 异步操作1
        resolve('Result from operation 1');
    });
}

function asyncOperation2() {
    return new Promise((resolve, reject) => {
        // 异步操作2
        resolve('Result from operation 2');
    });
}

asyncOperation1()
    .then(result1 => {
        console.log(result1);
        return asyncOperation2();
    })
    .then(result2 => {
        console.log(result2);
    })
    .catch(error => {
        console.error('Error:', error);
    });

// 示例代码：使用async/await确保异步操作顺序
async function executeOperations() {
    try {
        const result1 = await asyncOperation1();
        console.log(result1);
        const result2 = await asyncOperation2();
        console.log(result2);
    } catch (error) {
        console.error('Error:', error);
    }
}

executeOperations();