How to submit form in jquery

jQuery is a powerful JavaScript library that provides a series of syntax and methods that simplify JavaScript code writing and DOM manipulation. In web development, forms are a very important component, and jQuery can greatly simplify the form operation process. This article will introduce how to submit a form using jQuery.

1. Use jQuery's .serialize() method

jQuery's serialize() method can serialize the value of the form element into a string. Before the form is submitted, you can use this method to serialize the form data into JSON format, and then use jQuery's ajax() method to submit the form data.

The specific method is as follows:

// 监听表单提交事件
$( "form" ).submit(function( event ) {
  // 阻止表单默认提交行为
  event.preventDefault();
 
  // 将表单数据序列化
  var data = $( this ).serialize();
 
  // 使用ajax提交表单数据
  $.ajax({
    type: "POST",
    url: "yoururl.php",
    data: data,
    success: function() {
      alert( "提交成功！" );
    },
    error: function() {
      alert( "提交失败！" );
    }
  });
});

2. Use jQuery's submit() method

jQuery's submit() method can submit the form directly without passing button to trigger.

The specific method is as follows:

// 监听表单提交事件
$( "form" ).submit(function( event ) {
  // 阻止表单默认提交行为
  event.preventDefault();
 
  // 使用jQuery的submit()方法提交表单
  $( this ).submit();
});

3. Use jQuery’s ajaxForm() method

jQuery’s ajaxForm() method can serialize form data into JSON format , and submit the form asynchronously. This method is built on the jQuery Form plugin.

The specific methods are as follows:

// 监听表单提交事件
$( "form" ).submit(function( event ) {
  // 阻止表单默认提交行为
  event.preventDefault();
 
  // 使用jQuery的ajaxForm()方法提交表单
  $( this ).ajaxForm({
    url: "yoururl.php",
    type: "POST",
    dataType: "json",
    success: function() {
      alert( "提交成功！" );
    },
    error: function() {
      alert( "提交失败！" );
    }
  });
});

Summary:

The above three methods can all use jQuery to submit the form, but each has its own advantages and disadvantages. Use the serialize() method to serialize form data more simply, and use the ajax() method to asynchronously submit the form data. Use the submit() method to submit the form directly without triggering it through a button. The ajaxForm() method can be used to serialize the form data into JSON format and submit the form asynchronously, and you can specify parameters such as the data type for form submission.

Generally speaking, it is better to choose the appropriate method to submit the form according to actual needs.

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