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Today, I would like to share with you the relevant knowledge of how to use jQuery.ajaxSetup. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

JQuery.ajaxSetup (options)

Description: set the default value for Ajax requests to be used later

JQuery.ajaxSetup (options)

Options

Type: PlainObject

A "{key: value}" pair used to configure the Ajax request, all options are optional.

For detailed parameters for setting $.ajaxSetup (), see $.ajax ().

All subsequent Ajax calls to any function will use the new setting parameters unless they are called with their respective arguments overloaded with this default value. Until the next call to $.ajaxSetup ().

Note: the settings specified here affect all $.ajax or AJAX-based derived methods, such as calls to $.get (). This can lead to bad behavior because other calls (for example, plug-ins) may want normal default settings. For this reason, we strongly recommend that you do not use this API. Instead, we recommend explicitly setting options or defining a simple plug-in when calling.

For example, we can set the default URL parameter of the server's repeated response in advance:

$.ajaxSetup ({

Url: 'ping.php'

})

Now every Ajax request will automatically use this "ping.php" URL:

$.ajax ({

/ / url not set here; uses ping.php

Data: {'name':' Dan'}

})

Note: global callback functions should use their respective global Ajax event handling methods-.ajaxStart (), .ajaxStop (), .ajaxComplete (), .ajaxError (), .ajaxSuccess (), .ajaxSend ()-setting instead of setting the options object for $.ajaxSetup ().

Example:

Set the default address of the AJAX request to "/ xmlhttp/", disable triggering global AJAX events, and use POST instead of the default GET method. Subsequent AJAX requests no longer set any option parameters.

$.ajaxSetup ({

Url: "/ xmlhttp/"

Global: false

Type: "POST"

})

$.ajax ({data: myData})

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