How to solve the infinite loop caused by the submitHandler of the jQuery validate plugin?

A possible reason for the infinite loop might be due to the code in submitHandler. You can try adding a flag in submitHandler to indicate if it has already been submitted, in order to prevent duplicate submissions.

var submitted = false;

$("#myForm").validate({
  submitHandler: function(form) {
    if (!submitted) {
      submitted = true;
      // 提交表单代码
      form.submit();
    }
  }
});

Additionally, you can use “return false” in the submitHandler to prevent the default submission behavior and avoid duplicate submissions.

$("#myForm").validate({
  submitHandler: function(form) {
    // 提交表单代码
    form.submit();
    return false;
  }
});

These are two possible solutions, choose the appropriate one based on the specific situation to avoid an infinite loop.