bolawen

2024年04月09日

柏拉文

越努力，越幸运

一、实现

---

function requestWithTimeout(url) {
  const timeoutPromise = new Promise((resolve, reject) => {
    const timer = setTimeout(() => {
      clearTimeout(timer);
      reject(new Error('Request timeout'));
    }, 4000);
  });

  const requestPromise = new Promise((resolve, reject) => {
    const timer = setTimeout(() => {
      clearTimeout(timer);
      resolve('Request success');
    }, 5000);
  });

  return Promise.race([timeoutPromise, requestPromise]);
}

二、测试

---

requestWithTimeout('xxx')
  .then(res => {
    console.log(res);
  })
  .catch(error => {
    console.log(error);
  });