Jquery get ($. get) event usage and Analysis

Definition and usage

The get () method loads information through a remote http get request. This is a simple GET request function to replace complex $. ajax. You can call the callback function when the request is successful. To execute a function when an error occurs, use $. ajax.

Syntax

$ (Selector). get (url, data, success (response, status, xhr), dataType)

Parameter description

The url is required. Specifies the URL of the request.
 
Data is optional. Specifies the data sent to the server together with the request.

Success (response, status, xhr) is optional. Specifies the function that runs when the request is successful.

Additional parameter descriptions:

Response-contains the result data from the request

Status-contains the Request status

Xhr-contains XMLHttpRequest object
 
DataType is optional. Specifies the expected server response data type. By default, jQuery can be intelligently judged.

Possible types include xml, html, text, script, json, and jsonp.

This function is short for Ajax functions and is equivalent:

$.ajax({  url: url,  data: data,  success: success,  dataType: dataType});

Instance used:

PHP file (http://www.phpernote.com/test.php) that returns data ):

<? Php $ arr = array (0 => array ('name' => 'qianyuqianxun ', 'Nick' => 'qianxun ', 'Contact '=> array ('website' => 'HTTP: // www.phpernote.com'), 1 => array ('name' => 'qisha ', 'Nick '=> 'seven shares', 'email' => 'yhm @ 163.com ', 'Contact' => array ('website' => 'HTTP: // www.baidu.com '); print_r (json_encode ($ arr [$ _ GET ['id'] [$ _ GET ['field']); exit;

The client obtains the following code:

$. Get ('HTTP: // www.phpernote.com/test.php', Region id:0,field:'name', function (data) {alert ('name: '+ data); // The result is qianyuqianxun });

Or:

$. Get ('HTTP: // www.phpernote.com/test.php', response id:0,field:'contact'response, function (data) {var dataObj = eval ("(" + data + ")"); alert (dataObj. website); // The result is: http://www.phpernote.com });

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