jquery sets asynchronous parameter name

In web development, asynchronous requests are a frequently used function. As a commonly used JavaScript library, jQuery also provides many convenient asynchronous request functions. When we send an asynchronous request through jQuery, if the parameter name is not set, "data" will be used as the parameter name by default. However, in some cases, if we need to set the name of the asynchronous request parameter, we can achieve this through some methods provided by jQuery.

This article will introduce how to use jQuery to set asynchronous parameter names, and use sample code to help readers better understand.

1. Use the $.ajax() method to set the asynchronous parameter name

For the case of using the $.ajax() method to send an asynchronous request, you can set the parameter "traditional" to true. Asynchronous parameter name. The specific code is as follows:

$.ajax({
    type: 'POST',
    url: 'test.php',
    data: {'param1': 'value1', 'param2': 'value2'},
    traditional: true,
    success: function() {},
    error: function() {}
});

In the above code, the "traditional" parameter is set to true, so that the asynchronous request parameter name sent will be in the form of "param1=value1¶m2=value2". If the "traditional" parameter is not set, the parameter name of the asynchronous request will default to "data".

2. Use the $.post() method to set the asynchronous parameter name

For the case of using the $.post() method to send an asynchronous request, you can also set the parameter "traditional" to true. Set the asynchronous parameter name. The specific code is as follows:

$.post('test.php', {'param1': 'value1', 'param2': 'value2'}, function() {}, 'json').traditional = true;

In the above code, a chain call is used to set the "traditional" parameter to true. In this way, the asynchronous request parameter name sent will be in the form of "param1=value1¶m2=value2".

3. Use the $.param() method to set the asynchronous parameter name

In addition to the $.ajax() method and the $.post() method, jQuery also provides a $.param() Method, you can serialize an object into a string for sending asynchronous requests. When using the $.param() method, you can set the second parameter to true to set the asynchronous request parameter name. The specific code is as follows:

var data = {'param1': 'value1', 'param2': 'value2'};
$.ajax({
    type: 'POST',
    url: 'test.php',
    data: $.param(data, true),
    success: function() {},
    error: function() {}
});

In the above code, the data object is serialized into a string through the $.param() method, and the second parameter is set to true, so that the asynchronous request can be customized parameter name.

The above are several ways to use jQuery to set asynchronous parameter names. It should be noted that different versions of jQuery may be different. In actual applications, specific settings need to be made according to the version. I hope this article can help developers who are learning or using jQuery.

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