How can we set up synchronous Ajax requests?

To achieve synchronous requests in Ajax, you can set the async parameter to false. The method for setting up synchronous requests in Ajax is as follows:

$.ajax({
  url: "your-url",
  type: "GET",
  async: false, // 设置为同步请求
  success: function(response) {
    // 处理成功返回的数据
  },
  error: function(xhr, status, error) {
    // 处理请求错误
  }
});

In the example above, when the async parameter is set to false, it means that a synchronous request will be initiated. This will cause the browser to wait for the server’s response after sending the request, until the server returns data or times out. During a synchronous request, the user interface may be blocked until the request is completed.

It is important to note that synchronous requests may cause the user interface to become unresponsive, so they should be used with caution. In most cases, default asynchronous requests should be used to avoid blocking the user interface.