jquery parameter list collection _jquery

Source: Internet
Author: User
Tags string format browser cache

Name of parameter

Type

Describe

URL

String

(Default: Current page address) sends the requested address.

type

String

(Default: "Get") Request method ("POST" or "get"), default to "get". Note: Other HTTP request methods, such as put and DELETE, are also available, but only partially supported by browsers.

Timeout

Number

Sets the request timeout (in milliseconds). This setting overrides the global setting.

Async

Boolean

(Default: TRUE) The default setting is that all requests are asynchronous requests. If you need to send a sync request, set this option to false. Note that the synchronization request will lock the browser and the user's other actions must wait for the request to complete before it can be executed.

Beforesend

Function

You can modify the functions of the XMLHttpRequest object before sending the request, such as adding a custom HTTP header. The XMLHttpRequest object is the only parameter.

function (XMLHttpRequest) {

This The options for this AJAX request

}

Cache

Boolean

(default: TRUE) JQuery 1.2 new functionality, set to false will not load request information from the browser cache.

Complete

Function

The callback function (called when the request succeeds or fails) after the request completes. Parameters: XMLHttpRequest Object, Success message string.

function (XMLHttpRequest, textstatus) {

This The options for this AJAX request

}

ContentType

String

(Default: "application/x-www-form-urlencoded") the content encoding type when sending information to the server. Default values are appropriate for most applications.

data

Object,
String

Data sent to the server. is automatically converted to the request string format. The get  request is appended to the url . View  processData  option Descriptions to prevent this automatic conversion. Must be in the key/value  format. If the array,jquery  will automatically correspond to the same name for different values. such as  {foo:["Bar1", "Bar2"]}  converted to   ' &foo=bar1&foo=bar2 '.

DataType

String

The
expects the data type returned by the server. If,jquery  is not specified, the  responseXML  or  responsetext is automatically returned according to the  HTTP  package mime  information, and is passed as a callback function parameter. Available values:

XML:  returns  XML  documents, available  jQuery  processing. The

HTML:  returns plain text  HTML  information, and contains  script  elements. The

Script:  returns plain text  JavaScript  code. Results are not automatically cached.

"JSON":  returns  JSON  data  . The

"JSONP": jsonp  format. When calling a function using the  JSONP  form, such as   "myurl?callback=?" jquery  automatically replaces  ?  with the correct function name to execute the callback function.

Error

Function

(Default: Automatic judgment (XML or HTML)) This method is called when a request fails. This method has three parameters: the XMLHttpRequest object, the error message, and (possibly) the error object being caught.

function (XMLHttpRequest, textstatus, Errorthrown) {

Typically, only one of the Textstatus and Errorthown has a value.

This The options for this AJAX request

}

Global

Boolean

(default: TRUE) triggers a global AJAX event. Setting to FALSE will not trigger global AJAX events, such as Ajaxstart or Ajaxstop. Can be used to control different AJAX events

Ifmodified

Boolean

(default: false) gets new data only when the server data changes. Use HTTP packet last-modified header information to determine.

ProcessData

Boolean

(default: TRUE) by default, the data sent is converted to an object (technically not a string) to match the default content type "application/x-www-form-urlencoded". Set to False if you want to send DOM tree information or other information that you do not want to convert.

Success

Function

callback function after successful request. This method has two parameters: the server returns the data, returns the status

function (data, textstatus) {

Data could be xmldoc, jsonobj, HTML, text, etc ...

This The options for this AJAX request

}

Here are a few Ajax event parameters:beforesend ,success ,complete, error. We can define these events to deal well with each of our AJAX requests. Notice that this in these AJAX events is the information about the options for the Ajax request (refer to the picture of this when you say Get () method).
Read the argument list carefully, and if you want to use jquery for AJAX development, you need to be familiar with these parameters.

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