js fetch 同步请求

// 使用Promise链
fetch('https://api.example.com/data')
  .then(response => {
    if (!response.ok) {
      throw new Error('Network response was not ok');
    }
    return response.json();
  })
  .then(data => {
    console.log(data);
    // 在这里处理数据
  })
  .catch(error => {
    console.error('There has been a problem with your fetch operation:', error);
  });

// 使用async/await
async function fetchData() {
  try {
    const response = await fetch('https://api.example.com/data');
    if (!response.ok) {
      throw new Error('Network response was not ok');
    }
    const data = await response.json();
    console.log(data);
    // 在这里处理数据
  } catch (error) {
    console.error('There has been a problem with your fetch operation:', error);
  }
}

fetchData();