the difference between asynchronous and synchronous? Our common Web program development is basically synchronous, meaning to execute a program to execute the next paragraph, similar to the call in the phone, a phone to answer the next call, and asynchronous can perform multiple tasks simultaneously, feel that there are many lines, similar to text messages, Don't stop accepting another text message because of reading a text message. Ajax can also be e
Although I used Ajax in the past, I always felt that it was wrong. In the past, Ajax was used to request the ASPX page. There were countless pages and I felt quite confused.
In my recent work, I also felt that my colleague's jquery + ashx was quite simple and convenient to use. I made a small demo here.
The front-end page is very simple,
In the previous blog, I wrote about using XMLHttpRequest objects to load data asynchronously in traditional JavaScript, alas, children's shoes .... See the code is not a little headache ah! Not only you, I have a little disgusted, not only to judge the browser, but also ... Anyway, there is a big piece of code, looks not cool, now, let us forget to take a big Tuo bar (remember: Here is not really forget!) It seems like many companies interviewing Ajax
that is needed, such as:
Callback ({"Name": "Justany_whitesnow"});
The jquery team, of course, wants developers to develop without needing to cross the domain, just use it directly.
So they wrap XMLHttpRequest, Script DOM Element, JSONP, and use them as Ajax.
By the way, in fact, the modern browser (Firefox 3.5+, Safari 4+, chrome, etc.), through the xmlhttprequeest implementation of the Cors Cross-ori
JQuery AJAX $. post () method, jquery. post
AJAX = Asynchronous JavaScript and XML.AJAX is a technology for creating fast dynamic web pages.AJAX allows asynchronous updates on webpages by exchanging a small amount of data with the server in the background. This means that it is possible to update part of the webpage wi
This article uses Jquery + Ajax + PHP + MySQL to manage a customer classification list. how can we use Ajax and Json technology to make it easier for users to operate, if you are interested, refer to the previous article. we have explained in detail how to add and delete list management operations. we can see that the front-end page communicates with the backgrou
, if not set, and $. Get () returns the same format as the string.Copy the Code code as follows:$.post ("data.php", $ ("#firstName. Val ()"), function (data) {$ ("#postResponse"). HTML (data.name);}, "JSON"//sets the type of get data, so the resulting data format is JSON-type);Sam, $.ajax (Opiton)Description: $.ajax () This function is powerful, you can do a lot of precise control of
JQuery Ajax Full resolutionThis article short address: http://s8.hk/156
This article address: JQuery Ajax full resolution
The author of this article: Qleelulu
Reprint please indicate the source.
jquery is really a nice lightweight JS framework that can help us quickly develo
code code as follows:$.post ("data.php", $ ("#firstName. Val ()"), function (data) {$ ("#postResponse"). HTML (data.name);}, "JSON"//sets the type of get data, so the resulting data format is JSON-type);Sam, $.ajax (Opiton)Description: $.ajax () This function is powerful, you can do a lot of precise control of Ajax, please refer to the relevant information for d
Details about Jquery Ajax functions:$. Get (), $. post (), $. ajax (), $. getJSON ()
1, $. get (url, [data], [callback])
Note: The url is the request address, the data is the list of request data, and the callback is the callback function after the request is successful. This function accepts two parameters. The first one is the data returned by the server, the s
code code as follows:$.post ("data.php", $ ("#firstName. Val ()"), function (data) {$ ("#postResponse"). HTML (data.name);}, "JSON"//sets the type of get data, so the resulting data format is JSON-type);Sam, $.ajax (Opiton)Description: $.ajax () This function is powerful, you can do a lot of precise control of Ajax, please refer to the relevant information for d
calling the callback function.
$ ('Input [name = "username"] '). blur (function () {// verification format var pattern =/^ [a-z] [\ w] {4, 11} $/I; if (! Pattern. test ($ (this ). val () {symbol (this).siblings('.desc'character .html ('5-12 characters, must begin with a letter, can only enter numbers, letters and underscores '); return false ;} // verify that the user name is registered. $. post ('Register. php? Act = checkuser', {username: $ (this ). val ()}, function (data) {if (data. status
requests
Parameters:
URL (String): The URL address of the sending request.
Data (MAP): (optional) data to be sent to the server, expressed as a Key/value key-value pair.
Callback (function): (optional) The callback function when loading succeeds (the method is called only if the return state of response is success).
type (String): (optional) The official description is: Type of data to be sent. The type that should actually be requested for the client (Json,xml, etc.)
We often need to enter keywords on the front-end page to search for data. This has become a habit. Today we will share with you how to use jQuery, MySQL, and Ajax to create simple and attractive Ajax searches, do not miss out if you are interested.
In the web development process, we often need to enter keywords on the front-end page for data search. We usually us
Jquery ajax was used in a recent project that requires a lot of new technologies for refreshing traffic. Previously, Jquery ajax was used because of the few requirements for refreshing traffic in the project. In addition, the previous company mainly used VS2003 for development, ah, this old antique is old enough to lea
This example describes how jquery loads a piece of text through ajax. Share it with you for your reference. This is a simple example. Pay attention to the encoding problem. Otherwise, garbled characters may occur. The ajax () method loads remote data through an HTTP request.
This method is implemented by jQuery un
"). HTML (data.name);}, "JSON"//sets the type of get data, so the resulting data format is JSON-type);san, $.ajax (Opiton)Description: $.ajax () This function is powerful, you can do a lot of precise control of Ajax, please refer to the relevant information for detailed descriptionThe code is as follows: $.ajax ({URL:
This article mainly introduces how to solve the problem of passing Chinese garbled characters in the url of jquery. ajax. If you need it, you can refer to it for help.
JQuery
Default contentType of JQuery: application/x-www-form-urlencoded
This is the reason why JQuery is g
This article is about $. get (), $. post (), $. ajax (), $. the usage of getJSON () is summarized in detail. If you need it, you can refer to it for help.
Details about Jquery Ajax functions:$. Get (), $. post (), $. ajax (), $. getJSON ()
1, $. get (url, [data], [callback])
Note: The url is the request address, the d
This article is for jquery in $.get (), $.post (), $.ajax (), $.getjson () with a detailed summary of the introduction, the need for friends can come over to the reference, I hope to be helpful to everyoneRead more about Jquery's various Ajax functions:$.get (), $.post (), $.ajax (), $.getjson ()a, $.get (url,[data],[c
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