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jquery get can have several parameters

青灯夜游Original: 2022-05-25 15:47:222108browse

get() can have 4 parameters: 1. The first parameter cannot be omitted and is used to specify the URL that needs to be requested; 2. The second parameter can be omitted and is used to specify the URL that is sent to the server along with the request. Data; 3. The third parameter can be omitted, specifying the callback function to be run when the request is successful; 4. The fourth parameter can be omitted, specifying the data type of the expected server response.

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

The jQuery get() method loads data from the server using an HTTP GET request.

The get() method accepts 4 parameters (one required, three optional)

$.get(URL,data,function(data,status,xhr),dataType)

Parameters	Description
URL	Required. Specifies the URL you need to request.
data	Optional. Specifies the data to be sent to the server with the request.
function(data,status,xhr)	Optional. Specifies a function to run when the request succeeds. Additional parameters: data - Contains the result data from the request status - Contains the status of the request ("success", "notmodified", "error", "timeout", "parsererror") xhr - Contains the XMLHttpRequest object
dataType	Optional. Specifies the data type of the expected server response. By default, jQuery will figure it out intelligently. Possible types: "xml" - an XML document "html" - HTML as plain text "text" - a plain text string "script" - Runs the response as JavaScript and returns it as plain text "json" - Runs the response as JSON and returns it as a JavaScript object "jsonp" - Uses JSONP to load a JSON chunk , will add a "?callback=?" to the URL to specify the callback

Request "test.php", but ignore the return result:

$.get("test.php");

Request "test.php" and send some additional data along with the request (ignore the return result):

$.get("test.php", { name:"Donald", town:"Ducktown" });

Request "test.php" and pass the data array to the server (ignore the return result):

$.get("test.php", { &#39;colors[]&#39; : ["Red","Green","Blue"] });

Request "test.php" and remind the result of the request:

$.get("test.php", function(data){
alert("Data: " + data);
});

Example:

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<script>
			$(document).ready(function() {
				$("button").click(function() {
					$.get("/try/ajax/demo_test.php", function(data, status) {
						alert("数据: " + data + "\n状态: " + status);
					});
				});
			});
		</script>
	</head>
	<body>

		<button>发送一个 HTTP GET 请求并获取返回结果</button>

	</body>
</html>

jquery get can have several parameters

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