bapp07.indd 02/17/2015 Page 533

AJAX Methods

METHOD DESCRIPTION RETURN VALUE

AJAX REQUESTS

$.ajax([options])

$.ajax(url[, options])

Allows you to pass an object lit-

eral specifying various options in

key, value pairs. For the complete

list of options, see the “AJAX

Options” table. This method is

used by jQuery’s other AJAX

methods to make AJAX requests.

You should use this method only if

you require fi ner-grained control

over an AJAX request than is pos-

sible with jQuery’s other methods.

jQuery

XMLHttpRequest

ajaxComplete(function()) Attaches a function to be exe-

cuted when an AJAX request is

completed.

jQuery

ajaxError(function()) Attaches a function that is exe-

cuted when an error occurs.

jQuery

$.ajaxPrefilter(

[dataTypes],

function()

)

The dataTypes argument is

optional and should contain

one or more space-separated

dataTypes.

The callback function argument

sets default values for future

AJAX requests. Its argument list

is options, originalOptions,

jqXHR.

Undefi ned

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continues

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