如何在前端javascript上接收通过post请求提交的表单数据

const form = document.querySelector('form');
form.addEventListener('submit', handleSubmit);

function handleSubmit(event) {
  event.preventDefault();
  // 处理表单数据
}

function handleSubmit(event) {
  event.preventDefault();
  
  const form = event.target;
  const formData = new FormData(form);
  
  // 遍历表单数据
  for (let [name, value] of formData.entries()) {
    console.log(name, value);
  }
}

function handleSubmit(event) {
  event.preventDefault();
  
  const form = event.target;
  const formData = new FormData(form);
  
  // 发送数据到服务器
  fetch('/api/submit', {
    method: 'POST',
    body: formData
  })
  .then(response => response.json())
  .then(data => {
    // 处理服务器返回的响应
  })
  .catch(error => {
    // 处理请求错误
  });
}