js执行时间控制

console.log('Start');
setTimeout(() => {
  console.log('After 2 seconds');
}, 2000);
console.log('End');

let count = 0;
const intervalId = setInterval(() => {
  count++;
  console.log(`Count: ${count}`);
  if (count === 5) {
    clearInterval(intervalId); // 清除定时器
  }
}, 1000);

function fetchWithTimeout(url, timeout) {
  return Promise.race([
    fetch(url),
    new Promise((_, reject) =>
      setTimeout(() => reject(new Error('Request timed out')), timeout)
    )
  ]);
}

fetchWithTimeout('https://api.example.com/data', 5000)
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

async function fetchData() {
  try {
    const response = await fetch('https://api.example.com/data');
    const data = await response.json();
    console.log(data);
  } catch (error) {
    console.error(error);
  }
}

fetchData();